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XJ PARTS CATALOG, SECTION K: STEERING/SUSPENSION

SECTION K:

STEERING/SUSPENSION: --Rear Suspension: Shock Absorbers, hardware, etc.




SHOCK ABSORBERS:

Well, let's face it, it's been 25-30 years since your bike was first sold and operated, and your rear SHOCK ABSORBERS:

a) were not all that great to begin with, and....
b) pretty much completely worn out by now.

Factory-installed motorcycle shock absorbers cannot always be considered top-of-the-line from either performance, comfort, or endurance standpoints----and of course, this is a typical situation for most mass-production vehicles, as they end up being a "compromise" product that will (hopefully) suit "all buyers, in all conditions" and are usually selected for production bikes with an eye towards cost efficiency and savings (the exception being the original XJ900RK Seca rear shocks, which ARE a true high-performance design).

Stock fluid- or gas-filled, spring-assisted shock absorbers are good for about 10,000 to 20,000 miles of typical use before they are ready for that large XJ graveyard in the sky.

Of course, if you want to go thru the effort, the stock XJ650 Turbo and XJ1100 air shocks can be rebuilt, here's how:

http://www.xs11.com/xs11-info/tech-tips/repairs/other/192-xj-rear-air-shock-repairrebuild.html



OEM Shock Absorbers:

HCP25860 OEM rear SHOCK ABSORBER, brand new unit exactly replaces the original. This mono-shock unit includes the upper bushing, both lower bushings, the lower oil seals, black coil spring, and the rubber mud guard. Lower mounting collars and both upper and lower mounting hardware (bolt, washer, nut) are not included. NOTE: this shock has the same valving (and thus performance and road feel) as the original shock, and will leave the rear suspension at the original height. For all 1992-98 XJ600 Seca II models. Each:
$ 589.95

HCP25847 Aftermarket standard-performance rear SHOCK ABSORBER, brand new unit will properly replace the original. This mono-shock unit includes the upper bushing, both lower bushings, and the lower oil seals. The lower rubber mud guard, the lower mounting collars, and both upper and lower mounting hardware (bolt, washer, nut) are not included. NOTE: this shock has slightly stiffer valving and spring rate compared to the original shock (and thus offers slightly more performance and control than the original), and will leave the rear suspension at the original height. For all 1992-98 XJ600 Seca II models. Each:
$ 389.95

HCP25848 Aftermarket standard-performance rear SHOCK ABSORBER, brand new unit will properly replace the original. This mono-shock unit includes the upper bushing, both lower bushings, the lower oil seals, and the black coil spring. The lower rubber mud guard, the lower mounting collars, and both upper and lower mounting hardware (bolt, washer, nut) are not included. NOTE: this shock has slightly stiffer valving and spring rate compared to the original shock (and thus offers slightly more performance and control than the original), and has a slightly longer length than original and thus will raise the rear suspension by about 5/8” higher than stock. For all 1992-98 XJ600 Seca II models. Each:
$ 399.95

HCP25857 Aftermarket high-performance rear SHOCK ABSORBER, brand new unit will properly replace the original. This mono-shock unit includes the upper bushing, both lower bushings, the lower oil seals, and a red coil spring. The lower rubber mud guard, the lower mounting collars, and both upper and lower mounting hardware (bolt, washer, nut) are not included. NOTE: this shock has much stiffer valving and spring rate compared to the original shock (and thus offers a much firmer feel / performance and control than the original), has a slightly longer length, and will allow for more suspension travel than than original. It will raise the rear suspension by about 3/4” to 1" higher than stock. This shock has enough carrying capacity and can be adjusted for both single and 2-up riding (or extra gear) and still maintain its performance. Single riders should initially try setting #3, while 2-up riders may prefer the #6 or #7 setting (your stock adjuster tool can be used, and it’s recommended that you set it to the lowest preload setting before installation to make fitment easier). Adequate ground clearance for the rear tire when on the centerstand is maintained. Due to the aggressiveness of this shock’s performance over stock, it is recommended that you upgrade your front fork springs to our HCP19477 progressive coil springs or increase the viscosity of your fork fluid (to 15W or 20W) to get a balanced front/rear suspension tune when using these shocks. Fits all 1992-98 XJ600 Seca II models. Each:
$ 449.95




HCP5692 OEM rear SHOCK ABSORBER, brand new replacement unit exactly replaces the original. Although this shock comes with the lower bushing that is correct for the right side, it can also be used on the left side if the original left lower shock bushing is re-used from your original. Complete, assembled shocks come with the springs and top cap. For all XJ750 Seca models. Each:
$ discontinued

HCP5692SET OEM rear SHOCK ABSORBERS, pair:
$ discontinued




HCP5716 OEM rear SHOCK ABSORBER, brand new replacement unit exactly replaces the original. Although this shock comes with the lower bushing that is correct for the right side, it can also be used on the left side if the original left lower shock bushing is re-used from your original. This all-aluminum bodies "DeCarbon" remote-reservoir shock is correct for all XJ900RK, RL, and FN models. Each:
$ discontinued

HCP5716SET OEM rear SHOCK ABSORBERS, pair:
$ discontinued



Original Shock Absorber ID Decals:

HCP8500 Aftermarket suspension ID DECAL, small black rectangular decal with silver lettering "KYB", used as follows:

- mounts directly above the lower fork tube drain screw and faces the rear of the bike. Use 1 on the left side fork tube on XJ550 Maxim, all XJ650 (except Turbo) models, all XJ700 and XJ750-X models, and 1 on the right side fork tube on XJ550 Seca models.

- mounts directly below the lower vertical adjuster stop peg on the rear shock absorbers. Use 1 per shock on all XJ550 models and all XJ650 (except Turbo) models original rear shocks.

Each:
$ 8.95


HCP15135 Aftermarket rear shock absorber tube ID DECAL, small chrome rectangular decal with black lettering "SHOWA", mounts directly below the lower vertical adjuster stop peg. Use 1 per shock on all 1982 XJ750 Maxim and 1981-83 XJ750 Seca models original rear shocks. Each:
$ 8.95


HCP15139 Aftermarket rear shock absorber ADJUSTER DECAL, long, thin black decal with red "Adjustable Damper" lettering and white 1-2-3-4 adjustment numbers, used on XJ650 Turbo rear shock absorbers. Each:
$ 6.95

HCP8105 Aftermarket AIR SUSPENSION WARNING DECAL, small clear rectangular decal with black lettering and border, mounts directly above the right lower fork tube drain screw and faces the rear of the bike on XJ750 Maxim and Midnight Maxim forks tubes, on the left lower fork tube facing outwards (between the lower caliper moutning bolt and the front axle hole) on all XJ700-X and XJ750-X models, and is also used on XJ650 Turbo and XJ1100 rear air shock absorbers.
$ 11.95


HCP8576 Aftermarket rear shock absorber ADJUSTER DECAL, black decal with red and silver adjuster position "arrows" and chrome lettering. Used on the bottom rubber damper ring on all XJ900 "DeCarbon" style rear shock absorbers. Use 1 per shock. Each:
$ 9.95

HCP8096 Aftermarket rear shock absorber WARNING DECAL, black decal with silver lettering. Used on all XJ900 "DeCarbon" style rear shock absorbers in the recessed area on the reservoir appendage unit. Use 1 per shock. Each:
$ 11.95




rsh2) Original rear shock absorber MOUNTING HARDWARE perfectly replaces the missing, damaged, or rusted originals.

NOTE: on some models, you may come across the unfortunate situation of finding the upper shock mounting stud damaged, removed, or otherwise rendered un-usuable. Here is a solution to this dilemma:

http://www.xjbikes.com/forums/threads/rear-shock-stud-end-repair.62848/


HCP2249 OEM rear shock absorber chrome-plated domed CROWN NUT. Each:
$ 5.95

HCP16425 Aftermarket rear shock absorber chrome-plated domed CROWN NUT, more highly polished finish than on the stock OEM nut above. Each:
$ 7.95

The above two versions of this crown nuts fit all of the following models in the specified locations.

XJ650 Maxim and Midnight Maxim models: upper shock mounting, both sides, and left side lower shock absorber mounting.
XJ650 Seca and Turbo models: left side lower shock absorber mounting.
XJ700 all models: left side lower shock absorber mounting.
XJ750 Maxim and Midnight Maxim models: upper shock mounting, both sides, and left side lower shock absorber mounting.
1981-83 XJ750 Seca models: left side lower shock absorber mounting.
XJ900RK, RL, N/FN, and F models: left side lower shock absorber mounting.
XJ1100 models: left side lower shock absorber mounting.
XS1100 all models: left side lower shock absorber mounting.



HCP2250 OEM rear shock absorber chrome-plated domed CROWN NUT. Fits all of the following models in the specified locations. Each:
$ 6.95

HCP16424 Aftermarket rear shock absorber chrome-plated domed CROWN NUT. Fits all of the following models in the specified locations. This nut is a bit taller compared to the original HCP2250 nut, and has a beautiful, highly polished chrome finish compared to the stock OEM nut, and the extra height is visually pleasing. Each:
$ 6.95

XJ550 all models: upper shock mounting, both sides.
XJ650 Seca and Turbo models: upper shock mounting, both sides.
XJ750 Seca models: upper shock mounting, both sides.
XJ900RK, RL, N/FN, and F models: upper shock mounting, both sides.
XJ1100 models: upper shock mounting, both sides.
XS1100 all models: upper shock mounting, both sides.




HCP2229 OEM rear shock absorber polished dome-headed BOLT. Fits all of the following models in the specified locations. Bright plated. NOTE: Midnight Maxim models originally used a black-plated version of this same clamp, which is no longer available. Each:
$ 5.95

XJ550 models: lower shock mounting, both sides.
XJ650 models: right side lower shock absorber mounting.
XJ700 models: right side lower shock absorber mounting.
XJ750 models: right side lower shock absorber mounting.
XJ900RK, RL, N/FN, and F models: right side lower shock absorber mounting.
XJ1100 models: right side lower shock absorber mounting.
XS1100 all models except 1981 Midnight Special: right side lower shock absorber mounting.




HCP3966 OEM rear shock absorber polished, domed-head flanged BOLT. Fits all of the following models in the specified locations. Each:
$ 2.95

XJ700 and XJ750-X models: upper shock mounting, both sides.



HCP7307 OEM rear shock absorber BOLT. Fits all 1992-98 XJ600 Seca II models in the upper position. Each:
$ 8.95

HCP25850 OEM rear shock absorber BOLT. Fits all 1992-98 XJ600 Seca II models in the lower position. Each:
$ 5.95

HCP25855 OEM rear shock absorber mounting bolt LOCKER NNUT. Fits all 1992-98 XJ600 Seca II models in the upper or lower position. Each:
$ 3.95


HCP25849 OEM rear shock absorber EYE BUSHING. Fits all 1992-98 XJ600 Seca II models in the upper position. Each:
$ 27.95

HCP25851 OEM rear shock absorber COLLAR. Fits all 1992-98 XJ600 Seca II models in the lower position. Use 2 per shock. Each:
$ 13.95

HCP25852 OEM rear shock absorber EYE BUSHING. Fits all 1992-98 XJ600 Seca II models in the lower position. Use 2 per shock. Each:
$ 8.95

HCP25853 OEM rear shock absorber GREASE SEAL. Fits all 1992-98 XJ600 Seca II models in the lower position. Use 2 per shock. Each:
$ 8.95

HCP25856 OEM rear shock absorber MUD GUARD. Fits all 1992-98 XJ600 Seca II models in the lower position. Use12 per shock. Each:
$ 14.95



HCP8866 OEM rear shock absorber STUD. Fits all XJ650, XJ700, XJ750, and all XJ900RK, RL, N/FN, and F models in the left lower position (this stud actually screws into the final drive housing).
$ 12.95



HCP2258 OEM rear shock absorber mounting bolt FLAT WASHER. Fits all of the following models in the specified locations. Each:
$ 3.95

XJ550 Maxim models: lower shock mounting, both sides.
XJ700 and XJ750-X models: lower shock mounting, left side.
XS1100 all Special and Midnight Special models: upper shock mounting, both sides, use 2 per shock.



HCP3946 OEM rear shock absorber mounting bolt FLAT WASHER, alloy steel, bright finish. Fits all of the following models in the specified locations. Each:
$ 3.95

XS1100 1978-79 Standard models: upper shock mounting, left side.
XS1100 1978-79 Standard models: lower shock mounting, left side

HCP26196 Aftermarket rear shock absorber mounting bolt FLAT WASHER, alloy steel, bright finish. Fits 1978-79 XS1100 Standard models on the left side, upper and lower shock mounting positions. Each:
$ 1.95

HCP26197 Aftermarket rear shock absorber mounting bolt FLAT WASHER, 18/8 stainless steel, bright finish. Fits 1978-79 XS1100 Standard models on the left side, upper and lower shock mounting positions. Each:
$ 2.95

HCP26198 Aftermarket rear shock absorber mounting bolt FLAT WASHER, 316 stainless steel, dull finish. Fits 1978-79 XS1100 Standard models on the left side, upper and lower shock mounting positions. Each:
$ 3.95




HCP21864 OEM rear shock absorber mounting bolt FLAT WASHER. Fits all of the following models in the specified locations. Each:
$ 4.95

XS1100 1978-79 Standard models (1978-1979): upper shock mounting, right side.
XS1100 1980-81 all models: lower shock mounting, left side.




HCP2247 OEM rear shock absorber mounting bolt special THICK FLAT WASHER. Each:
$ 6.95

HCP16426 Aftermarket rear shock absorber mounting bolt THICK FLAT WASHER. More highly polished chrome finish than on the stock OEM washer. Each:
$ 5.95

The above two versions of this washers fit all of the following models in the specified locations.

XJ550 models: upper shock mounting, both sides.
XJ650 models: upper shock mounting, both sides.
XJ750 air-cooled models: upper shock mounting, both sides.
XJ900RK, RL, N/FN, and F models: upper shock mounting, both sides.
XJ1100 models: upper shock mounting, both sides, and left side lower shock mounting




HCP2246 OEM rear shock absorber mounting bolt FLAT WASHER. Fits all of the following models in the specified locations. Each:
$ 1.95

XJ650 models: lower shock mounting, left side.
XJ750 air-cooled models: lower shock mounting, left side.
XJ900RK, RL, N/FN, and F models: lower shock mounting, left side.




HCP9839 OEM rear shock absorber mounting bolt SPACER WASHER. Fits all of the following models in the specified locations. Each:
$ 14.95

XJ700 and XJ750-X models: upper shock mounting, both sides.




HCP2230 OEM rear shock absorber mounting bolt LOCK WASHER, bright finish. Fits all of the following models in the specified locations. Each:
$ 2.75

HCP22225 Aftermarket rear shock absorber mounting bolt LOCK WASHER, zinc-plated alloy steel. Fits all of the following models in the specified locations. Each:
$ 1.50

HCP22227 Aftermarket rear shock absorber mounting bolt LOCK WASHER, 18/8 stainless steel. Fits all of the following models in the specified locations. Each:
$ 1.95

XJ650 all models (except Midnight Maxim): lower shock mounting, right side.
XJ700 models: lower shock mounting, right side.
XJ750 models: lower shock mounting, right side.
XJ900RK, RL, N/FN, and F models: lower shock mounting, right side.
XJ1100 models: lower shock mounting, right side.
XJ1100 all models except 1981 Midnight Special: lower shock mounting, right side.





HCP3497 OEM rear shock absorber mounting bolt LOCK WASHER. Fits all of the following models in the specified locations. Each:
$ 2.75

HCP22226 Aftermarket rear shock absorber mounting bolt LOCK WASHER, black finish. Fits all of the following models in the specified locations. Each:
$ 1.50

XJ650 Midnight Maxim: lower shock mounting, right side.
XJ1100 all 1981 Midnight Special: lower shock mounting, right side.




HCP20050 OEM rear shock absorber upper mounting BOLT, use per shock. For the following models: all 1984-85 FJ600 models. Each:
$ 3.95

HCP20049 OEM rear shock absorber upper mounting bolt FLAT WASHER, for all 1984-85 FJ600 models. Use 1 per bolt.
$ 3.75

HCP3973 OEM rear shock absorber upper mounting bolt NUT, for all 1984-85 FJ600 models. Use 1 per bolt.
$ 4.75


HCP20044 OEM rear shock absorber upper mounting COLLAR, use 1 per shock on 1984-85 FJ600 models. Each:
$ 10.95

HCP20043 OEM rear shock absorber lower mounting BUSHING, use 2 per shock on 1984-85 FJ600 models. Each:
$ 6.95


HCP2130 OEM rear shock absorber timing belt bracket MOUNTING BOLT, alloy steel socket head cap screw with a black finish, use 2 per bracket. For the following models: all 1984-85 FJ600 models. Each:
$ 6.95

HCP22192 Aftermarket rear shock absorber timing belt bracket MOUNTING BOLT, alloy steel socket head cap screw with a bright finish, use 1 per bike, for all XJ650 Turbo models, each:
$ 1.50

HCP22193 Aftermarket rear shock absorber timing belt bracket MOUNTING BOLT, alloy steel socket head cap screw with a black finish, use 1 per bike, for all XJ650 Turbo models, each:
$ 1.50

HCP23280 Aftermarket rear shock absorber timing belt bracket MOUNTING BOLT, bright 18-8 stainless steel. Use 2 per bracket. For the following models: all 1984-85 FJ600 models. Each:
$ 4.95

HCP22194 Aftermarket rear shock absorber timing belt bracket MOUNTING BOLT, 316 stainless steel socket head cap screw with a bright finish, use 1 per bike, for all XJ650 Turbo models, each:
$ 4.95

HCP23281 Aftermarket rear shock absorber timing belt bracket MOUNTING BOLT, magni-coated (dull aluminum finish, ultra-corrosion resistance) alloy steel. Use 2 per bracket. For the following models: all 1984-85 FJ600 models. Each:
$ 4.95



HCP4239 OEM rear shock absorber timing belt bracket mounting bolt FLAT WASHER, for all 1984-85 FJ600 models. Use 1 per bolt.
$ 1.25



Air Inflation Valves and O-Rings:

HCP5676 OEM rear shock absorber air fill valve CAP. Used on all XJ650 Turbo models, one on each shock. Each:
$ 1.95

HCP8274 OEM rear shock absorber AIR FILL VALVE, comes complete the internal stem core, its o-ring, and chrome cap. Used on all XJ1100 models, one on the left shock and two on the right shock. Each:
$ 39.95



HCP2322 OEM rear shock absorber air valve or air hose O-RING, fits the following models: 1982-83 XJ650 Turbo (use 3 per system) and XJ1100 models (use 3 per system). Each:
$ 4.95

HCP14020 Aftermarket rear shock absorber air valve or air hose O-RING, fits the following models: 1982-83 XJ650 Turbo (use 3 per system) and XJ1100 models (use 3 per system). Each h:
$ 2.95




HCP9194 Aftermarket AIR VALVE STEM CORE, internal brass valve core with o-ring exactly replaces leaking and damaged originals on all 1982-83 XJ650 Turbo (use 3 per system) and XJ1100 models (use 3 per system). Each:
$ 1.25

HCP9194SET2 Aftermarket AIR VALVE STEM CORES, set of 2:
$ 1.95



HCP9196 Aftermarket AIR VALVE STEM TOOL, handy 4-in-1 tool allows you to properly remove and insert the stem core, and also clean/chase/re-thread the internal and external stem threads.
$ 4.95



Shock Absorber Adjuster Tool:

HCP7863 Aftermarket steering stem ring nut and shock absorber ADJUSTER TOOL, heavy-duty chrome plated spanner "wrench" is the correct size to work with all XJ-series bike steering stem ring nuts, as well as fitting the adjuster tab on most original rear shock absorbers (for those models that have non-air adjustable rear shocks). Very high quality, versatile tool to have in your box.
$ 32.95




Aftermarket Shock Absorbers:

Okay, shocks are pretty simple devices----as are coil springs----and although a coil spring wrapped around a shock absorber is still called a "shock absorber" (go figure!), we all realize that although each component "does its own thing", they each work with and complement each other in determining not just the ride quality, but also the performance (handling, braking, and acceleration) characteristics of the bike.

If it's time for a newly shocking experience, then lucky for you, because shock absorber technology and performance has improved dramatically since these bikes were built.


SPRINGS: actually come in two basic styles, Linear Resistance and Progressive Resistance. Resistance is merely the ability of the spring to "resist" compression given a load acting on it.

A spring with linear resistance characteristics will deflect equally in proportion to the load on it: for example, put a hypothetical linear spring under a 100-pound load, and it will compress by 1" in overall length. Put 200-pounds of weight on it, and it compresses a total of 2 inches; 300-pounds, 3" of compression, etc. That's a linear spring, a 1-to-1 straight-line relationship between load (weight) and compression.

No factory springs are linear though......


Because although a linear spring has very predictable deflection characteristics, they ride and handle terribly. All factory XJ springs are what are known as "progressive springs", meaning that it takes additional loading for each incremental inch of compression. So for example, a progressively-wound spring may still deflect 1" under the first 100-pounds of weight, but a 200-pound load will only deflect it a total of 1-3/4", while a 300-pound load may only result in a 2-3/8" compression. Equal additional amounts of weight (load) result in less and less compression......in other words, the spring gets PROGRESSIVELY harder to compress as the load increases.

This increased resistance as the load increases results in a much more usable amount of control as applied to a shock absorber, as well as a much better ride quality. The springs (and combined spring/shock) can be really "soft" for absorbing small dips and bumps, and then get progressively stiffer as the load increases, as happens during spirited cornering, braking, or acceleration. In addition, as long as the progression of the spring resistance is increased in a continual manner---with no great leaps or surges in resistance rates throughout the entire range of spring travel---then it makes for a very predictable response, which is incredibly important for driver safety and confidence.

Visually, you can look at a spring and tell whether it's a linear or progressive spring by observing the distance between adjacent coil windings: linear springs have equal spacing between all coils, top to bottom, while progressive-resistance springs having a different spacing between adjacent coils as you observe the entire spring. And, the tighter the spacing between the coils, the more the resistance....which is why the coils become much closer together as you approach the ends of a progressively-wound spring.


SHOCK ABSORBERS: although many people think of a shock absorber as just "another kind of spring"----and although there is some truth to that thought----shock absorbers not only provide a supplementary spring-like quality, but they also perform the unique function of providing an "anti-spring" or "counter-spring" function that helps, once again, to provide a level of control to the suspension that is so important.


What happens when a spring is compressed? It gains tension, stores the energy, and it resists the load and actually "fights against the load"---it wants to "snap back" to its original (or even past its original) at-rest position. This is NOT an endearing trait of a coil spring when used in a suspension....it makes the suspension into somewhat of a pogo-stick, boing-boing-boing until it finally comes to rest (and since a suspension, when in use while riding on anything except a perfectly flat, smooth surface, with absolutely zero braking or acceleration occurring, is ALWAYS involved in some type of action).

Shock absorbers to the rescue! By its design, a shock absorber, via a variety of engineering design details, not only resists the compression force (as a spring does), but the shock absorber then "fights back" against the tendency of a coiled, tensed spring to want to snap instantly back into the at-rest spring position. By forcing fluid and sometimes gas through a series of valves and orifices, the shock absorber SLOWS DOWN this "instant rebound" tendency of the spring, again adding the measure of control and predictability that enhances ride quality, performance, and safety.


TOGETHER, IN PERFECT HARMONY: what "shock absorber" engineers strive for is the balance between these two competing forces and components, in order to provide the best of all worlds. By studying, testing, and tweaking the variables of spring size, progressive spring rates, shock barrel size, types of fluid and valving within the shock, etc., they seek to provide the best overall combination. And as with anything in life, there are compromises, and there are expenses involved when trying to increase the overall performance level of a "shock". A well-designed and performing shock is the result of all these types of efforts and expenses, and is as much of an art as it is science.

Two common features that can be used to increase the performance of a shock----and, which determines how much you can "custom-tune" the performance of a given shock to your individual bike, riding style, and personal preferences and characteristics----is via the use of spring "pre-load" adjusters and shock "rebound dampening" adjusters.


Springs can benefit by having their "load" pre-tensioned, rather than being set at a fully at-rest position. The spring pre-load adjuster, at the bottom of the shock tube, allows the user (via a special shock "spanner wrench") to increase or decrease the amount of pre-loaded tension on the spring. ALL original and aftermarket shocks have these pre-load adjusters, although "high performance" shocks normally have more pre-load positions available than less expensive versions.

Shocks can be enhanced through the addition of a variable, user-adjustable "rebound damper control" mechanism---usually in the form of a small thumbwheel adjuster that clicks into looser or stiffer rebound-resistance positions. Remember, this adjuster on the shock body controls how strongly the internal shock valving "fights back" against a compressed, tensioned spring's attempt to jump back as quickly as possible to its relaxed state.


Rebound dampening controls are normally only found on higher-performance (and thus more expensive) shock absorbers. For example, all XJ550, all XJ650 (except Turbo), and all XJ700 models did NOT have rebound adjusters on the factory shocks, while all other models did have a user-controllable rebound adjustment mechanism.


Of course, the more user controllability, the better, but at a price....and not just in the initial purchase price. "Dialing in" a high-performance shock, through trial-and-testing of all the different combinations of spring pre-loads and shock rebound rates, can be a time consuming (but very important and vast-improvement-when-done) type of task. For example, while the 12-Series, 14-Series, and 412-Series of Progressive Suspension shocks all feature a 4-position spring tension pre-load adjuster, they have NO shock rebound dampening adjustment available, at all.


But the 418-Series of Progressive Suspension shocks have both a 4-position spring pre-load adjuster AND a 5-position shock rebound adjuster....giving a total of (5 x 4 = ) 20 different combinations of spring pre-load and shock rebound characteristics. Sorting through all of them is going to take a full afternoon, adjusting one, then the other, and going out on a repeatable "test-track" type of ride to see how the bike performs under all sorts of different conditions at each setting(s) combination, and which one you like the most.


But like we said, when you get it "right", you'll know it, you'll feel it, and you'll probably realize that it was well worth your efforts!


WARNING: although there are a number of extremely low-dollar "generic" shock absorbers that are available at large retailers, we caution you that such shock absorbers are not specifically valved, nor are their springs designed for the characteristics of XJ-series bikes (or, really, for ANY bikes). They are inexpensive because they are generic, and although that keeps their cost down, it also tends to keep their performance and durability way down, too.


All shock absorbers (except for the 12-Series and 14-Series shocks) are sold as fully assembled pairs, and come with all mounting adapters and bushings, as well as illustrated mounting instructions. You will be pleasantly, and perhaps amazingly surprised, just how much of a difference a set of true performance shock absorbers will make in the ride and handling quality of your bike.

NOTE: Progressive recommends the use of their HEAVY DUTY shock absorbers for single riders who weigh more than 200 pounds, or if most of your riding is done with a passenger or with heavy loads (such as in saddlebags, etc.).


TIP: Rear suspension SAG is an important and almost-always overlooked factor in determining ride quality and rear suspension performance (handling and ride quality). Incorrectly set sag not only effects the performance of the shock, but also of your front forks because as the ride height in the rear changes, the amount and rate of how the weight of the bike is transferred to the front forks changes, too. Sag can (and should be) adjusted whenever you install new shocks on your bike, or, if it’s never been checked and adjusted before, now would be a good time to do it!

http://www.factoryconnection.com/sag/



Progressive Suspension Shock Absorbers:

Progressive Suspension has been making motorcycle shock absorbers for over 20 years and is acknowledged as one of the leaders in the industry. We are now offering their line of replacement shock absorbers that not only perform exceptionally well----and are designed specifically for these model bikes----but also come in a variety of performance levels to fit almost any budget.


14-Series: are the most economical shock in the Progressive Suspension line, and feature small-body "vintage" style shock bodies as used originally on all XJ550 and XJ650 (except Turbo) models. Shock bodies are black, and then you have a choice of either black or chrome springs (in standard or heavy-duty versions) . These classic 14-Series shocks feature a 4-position spring pre-load cam-adjuster, velocity-sensitive multi-stage valving, and come with a full assortment of installation bushings, a packet of adjuster grease, the cam adjuster tool, and complete installation instructions. These shocks provide an affordable alternative to replace your original worn-out shocks with while getting the great quality of the Progressive brand!

As with the 12-Series shocks below, these 14-Series shock absorbers are just the shock body, so you'll also need to order (and install) the appropriate coil springs to be used with the bodies. Installation is fairly simple, and involves sliding the spring over an extended shock body and then compressing the spring (using your body weight) until the retainer clip can be installed. The heavy-duty springs may require some extra weight to compress enough to install the retainer, or you can use the tried-and-true "tourniquet" technique using some strong clothesline and a straight bar of some type and using the bar to twist the clothesline, thus compressing the spring.

NOTE: Customer experience and use seems to indicate that use of the 14-Series standard-duty springs on all XJ550 models and the heavy-duty springs on the all XJ650 models seems to provide the best level of performance and handling.

Shown below are the 12-Series shocks, which are basically identical in appearance to these 14-Series shocks:

http://xjbikes.com/forums/index.php?threads/18014



HCP9416 Progressive Suspension 14-Series "vintage-look" SHOCK ABSORBERS, shock bodies only. Springs need to be ordered separately from the choices listed below. Fits all XJ550 and XJ650 (except Turbo) models. Stock height. Pair:
$ discontinued


HCP9417 Progressive Suspension 14-Series BLACK STANDARD-DUTY SPRINGS, matched pair. The standard duty springs are recommended for all XJ550 models, and light-duty use on all XJ650 models except the XJ650RJ Seca. Pair:
$ 79.95


HCP9419 Progressive Suspension 14-Series CHROME STANDARD-DUTY SPRINGS, matched pair. The standard duty springs are recommended for all XJ550 models, and light-duty use on all XJ650 models except the XJ650RJ Seca. Pair:
$ 79.95

HCP9420 Progressive Suspension 14-Series CHROME HEAVY-DUTY SPRINGS, matched pair. These heavy-duty springs are recommended for all XJ550 models ridden primarily 2-up, and performance-oriented or heavy riders on all XJ650 models. Pair:
$ 79.95




12-Series: are the 2nd most popular shock in the Progressive Suspension line, and feature BLACK steel shock bodies, your choice of either black or chrome springs (in standard or heavy-duty versions), plastic upper spring cover caps, a 5-position spring pre-load cam-adjuster, and a full assortment of installation bushings, a packet of adjuster grease, the cam adjuster tool, and complete installation instructions. NOTE: these 12-Series shocks feature the same high-quality damper system as used in the more expensive 412-series shocks listed below.

Unlike the 412-Series and 418-Series shocks, these 12-Series shock absorbers are just the shock body, so you'll also need to order (and install) the appropriate coil springs to be used with the bodies. Installation is fairly simple, and involves sliding the spring over an extended shock body and then compressing the spring (using your body weight) until the retainer clip can be installed. The heavy-duty springs may require some extra weight to compress enough to install the retainer, or you can use the tried-and-true "tourniquet" technique using some strong clothesline and a straight bar of some type and using the bar to twist the clothesline, thus compressing the spring.

NOTE: Customer experience and use seems to indicate that use of the 12-Series standard-duty springs on all XJ550 models and the heavy-duty springs on almost all XJ650 and larger models seems to provide the best level of performance and handling.


These style shocks can be seen pictured here on an XJ550 Seca model:

http://xjbikes.com/forums/index.php?threads/18014



HCP9405 Progressive Suspension 12-Series SHOCK ABSORBERS, shock bodies only. Springs need to be ordered separately from the choices listed below. Fits all XJ550, XJ650, 1981-83 XJ750, XJ900RK, and XJ1100 models. NOTE: XJ900 models require the use of the HCP9440 travel limiters listed below. Stock height. Pair:
$ 209.95

HCP9406 Progressive Suspension 12-Series SHOCK ABSORBERS, shock bodies only. Springs need to be ordered separately from the choices listed below. Fits all XJ700 and 1985-86 XJ750-X models. Stock height. Pair:
$ 209.95

HCP9440 Progressive Suspension shock absorber TRAVEL LIMITER, required for use on all XJ900RK models. Pair:
$ 14.95



HCP9407 Progressive Suspension 12-Series BLACK SPRINGS, matched pair. These standard duty springs are recommended for all XJ550 models, and light-duty use on all XJ650 models except the XJ650RJ Seca. Pair:
$ 89.95

HCP9411 Progressive Suspension 12-Series BLACK SPRINGS, matched pair. These springs are recommended for all XJ550 models ridden primarily 2-up, and performance-oriented or heavy riders on all XJ650 models. Pair:
$ 89.95

HCP9409 Progressive Suspension 12-Series BLACK SPRINGS, matched pair. These standard duty springs are recommended for all XJ700 non-X models, and light-duty use on all XJ700-X, all XJ750 non-X models, XJ900RK, and XJ1100 models. Pair:
$ 89.95

HCP9413 Progressive Suspension 12-Series BLACK SPRINGS, matched pair. These heavy-duty springs are recommended for performance-oriented or primarily 2-up riding on all XJ700-X models, all XJ750-X models, XJ900RK, and XJ1100 models. Pair:
$ 89.95




HCP9408 Progressive Suspension 12-Series CHROME SPRINGS, matched pair. These standard duty springs are recommended for all XJ550 models, and light-duty use on all XJ650 models except the XJ650RJ Seca. Pair:
$ 89.95

HCP9412 Progressive Suspension 12-Series CHROME SPRINGS, matched pair. These springs are recommended for all XJ550 models ridden primarily 2-up, and performance-oriented or heavy riders on all XJ650 models. Pair:
$ 89.95

HCP9410 Progressive Suspension 12-Series CHROME SPRINGS, matched pair. These standard duty springs are recommended for all XJ700 non-X models, and light-duty use on all XJ700-X, all XJ750 non-X models, XJ900RK, and XJ1100 models. Pair:
$ 89.95

HCP9514 Progressive Suspension 12-Series CHROME SPRINGS, matched pair. These heavy-duty springs are recommended for performance-oriented or primarily 2-up riding on all XJ700-X models, all XJ750-X models, XJ900RK, and XJ1100 models. Pair:
$ 89.95




412-Series: are the most popular shock in the Progressive Suspension line, and feature double-walled BLACK steel shock bodies, chrome springs, chrome upper and lower spring cover caps, a 5-position spring tension pre-load cam-adjuster, black upper and lower shock eyes, and a full assortment of installation bushings, a packet of adjuster grease, the cam adjuster tool, and complete installation instructions.

NOTE: Customer experience and use seems to indicate that use of the 412-Series heavy-duty shocks on almost all XJ650 and larger models seems to provide a much better level of performance and handling at a minimal sacrifice in comfort.

These style shocks can be seen pictured here, images at top of page 2:

http://xjbikes.com/forums/index.php?threads/10875


HCP9401 Progressive Suspension 412-Series SHOCK ABSORBERS, with chrome springs, STANDARD DUTY application for all XJ550 and XJ650 models, stock height. Pair:
$ 329.95

HCP9402 Progressive Suspension 412-Series SHOCK ABSORBERS, with chrome springs, HEAVY DUTY application for all XJ550 and XJ650 models, and STANDARD DUTY application for all XJ750 non-X models, stock height. Pair:
$ 329.95



HCP9403 Progressive Suspension 412-Series SHOCK ABSORBERS, with chrome springs, STANDARD DUTY application for all XJ700-X and HEAVY DUTY for all XJ700 non-X models, stock height. Pair:
$ 329.95

HCP9414 Progressive Suspension 412-Series SHOCK ABSORBERS, with chrome springs, HEAVY DUTY application for all XJ700-X and XJ750-X models, stock height. Pair:
$ 329.95



HCP9404 Progressive Suspension 412-Series SHOCK ABSORBERS, with chrome springs, STANDARD DUTY application for all XJ900RK and XJ1100 models, and HEAVY DUTY for all XJ750 models, stock height. Pair:
$ 329.95

HCP9415 Progressive Suspension 412-Series SHOCK ABSORBERS, with chrome springs, HEAVY DUTY application for all XJ900RK and XJ1100 models, stock height. Pair:
$ 329.95


NOTE: XJ900RK models require the use of suspension travel limiters when using any of the above shocks:

HCP9440 Progressive Suspension shock absorber TRAVEL LIMITER, required for use on all XJ900RK models. Pair:
$ 22.95



416-Series Air Shocks: can be used as stock replacements for the XJ650 Turbo and XJ1100 models, although they differ a bit in appearance compared to stock. These shocks have a heavy-duty BLACK steel shock body, a chrome upper spring cover, and full-length black rubber accordion lower boots. The aluminum air chamber, in conjunction with the heavy-duty spring and combined with their velocity-sensitive, multi-stage damper valving insures precise control and the adjustability to suit your specific needs. These shocks come completely assembled, and with all the air lines, fittings, instructions, and installation bushings needed.


HCP9421 Progressive Suspension 416-Series AIR SHOCK ABSORBERS, featuring highly polished covers with black lower accordion boots. Although only the XJ650 Turbo and XJ1100 models used rear air suspension originally, these shocks will also fit all of the XJ550, XJ650, and 1981-83 XJ750 bikes, too. Pair:
$ 409.95

HCP9442 Progressive Suspension 416-Series AIR SHOCK ABSORBERS, featuring highly polished covers with black lower accordion boots. These shocks will fit all XJ700 and XJ750-X models. Pair:
$ 409.95




418-Series: these are not just the "big daddy" of the Progressive Suspension line, they are the 800-pound Gorillas of the aftermarket shock absorber world, and feature ALL the goodies: huge aircraft-grade polished billet aluminum or double-walled CHROME steel shock bodies, gas-charged for fade-free performance, a 5-position adjustable rebound rate damper, a 4-position spring pre-load cam-adjuster, hard-chromed 4130 steel shafts, and a full assortment of installation bushings, a packet of adjuster grease, the cam adjuster tool, and complete installation instructions.

NOTE: Progressive recommends the use of their HEAVY DUTY shock absorbers for single riders who weight more than 200 pounds, or if most of your riding is done with a passenger or with heavy loads (such as in saddlebags, etc.). However, with these 418-series shocks, their heavy-duty designation is overkill on the smaller XJ550 and XJ650 models, and we do not recommend nor offer them for those applications.


HCP9429 Progressive Suspension 418-Series SHOCK ABSORBERS, polished billet aluminum bodies with CHROME springs, HEAVY DUTY application for all XJ700-X and XJ750-X models, stock height. Pair:
$ 549.95



430-Series: are the latest and greatest "Show-Offs" in the Progressive Suspension line-up.....these are going to turn some heads! Featuring a brilliant chrome-plated steel shock body and mounting ears, they are available with either matching chrome or contrasting black springs and spring top caps, and the incorporate a variety of cutting-edge design techniques to provide the ultimate in appearance and performance:

- A high pressure gas-charged, mono-tube design features their deflective disk damping to insure high performance ride control.
- Threaded pre-load adjusters allow for tool-less adjustment, and thus effortless tuning of ride quality.
- Machined aluminum spring perches and sleek, modern, "street rod" styling.
- Available in both an all-chrome design (chrome body, springs, and spring top caps), or with contrasting black anodized springs and spring top caps.

Each pair of shocks comes with a full assortment of installation bushings, a packet of adjuster grease, and complete installation instructions.

NOTE: Customer experience and use seems to indicate that use of the 430-Series heavy-duty shocks on almost all XJ650 and larger models provides a much better level of performance and handling at a minimal sacrifice in comfort.

These style shocks can be visualized here:

http://www.progressivesuspension.com/metric/430series/index.html



HCP17841 Aftermarket Progressive Suspension 430-Series SHOCK ABSORBERS, all-chrome bodies with chrome springs and spring caps, STANDARD DUTY application for all 1981-83 XJ750 models, and HEAVY DUTY for all XJ550 and XJ650 models. Stock height. Pair:
$ 489.95

HCP17840 Aftermarket Progressive Suspension 430-Series SHOCK ABSORBERS, with chrome bodies and black springs and spring caps, STANDARD DUTY application for all 1981-83 XJ750 models, and HEAVY DUTY for all XJ550 and XJ650 models. Stock height. Pair:
$ 449.95



HCP17843 Aftermarket Progressive Suspension 430-Series SHOCK ABSORBERS, all-chrome bodies with chrome springs and spring caps, HEAVY DUTY application for all 1981-83 XJ750 models, and STANDARD DUTY for all XJ900, XJ1100, and XS1100 models. Stock height. NOTE: all XJ900 and XS1100 models require the use of the HCP9440 suspension travel limiters when using any of the above 430-series shocks. Pair:
$ 489.95

HCP17842 Aftermarket Progressive Suspension 430-Series SHOCK ABSORBERS, with chrome bodies and black springs and spring caps, HEAVY DUTY application for all 1981-83 XJ750 models, and STANDARD DUTY for all XJ900, XJ1100, and XS1100 models. Stock height. NOTE: all XJ900 and XS1100 models require the use of the HCP9440 suspension travel limiters when using any of the above 430-series shocks. Pair:
$ 449.95



HCP17849 Aftermarket Progressive Suspension 430-Series SHOCK ABSORBERS, all-chrome bodies with chrome springs and spring caps, HEAVY DUTY application for all XJ900, XJ1100, and XS1100 models. Stock height. NOTE: all XJ900 and XS1100 models require the use of the HCP9440 suspension travel limiters when using any of the above 430-series shocks. Pair:
$ 489.95

HCP17848 Aftermarket Progressive Suspension 430-Series SHOCK ABSORBERS with chrome bodies and black springs and spring caps, HEAVY DUTY application for all XJ900, XJ1100, and XS1100 models. Stock height. NOTE: all XJ900 and XS1100 models require the use of the HCP9440 suspension travel limiters when using any of the above 430-series shocks. Pair:
$ 449.95



HCP9440 Progressive Suspension shock absorber TRAVEL LIMITER, required for use on all XJ900 and XS1100 models. Pair:
$ 22.95



HCP17845 Aftermarket Progressive Suspension 430-Series SHOCK ABSORBERS, all-chrome bodies with chrome springs and spring caps, STANDARD DUTY application for all XJ700-X models and XJ750-X models, and HEAVY DUTY for all XJ700 non-X models, stock height. Pair:
$ 489.95

HCP17844 Aftermarket Progressive Suspension 430-Series SHOCK ABSORBERS, with chrome bodies and black springs and spring caps, STANDARD DUTY application for all XJ700-X and XJ750-X models, and HEAVY DUTY for all XJ700 non-X models, stock height. Pair:
$ 449.95



HCP17847 Aftermarket Progressive Suspension 430-Series SHOCK ABSORBERS, all-chrome bodies with chrome springs and spring caps, HEAVY DUTY application for all XJ700-X and XJ750-X models, stock height. Pair:
$ 489.95

HCP17846 Aftermarket Progressive Suspension 430-Series SHOCK ABSORBERS with chrome bodies and black springs and spring caps, HEAVY DUTY application for all XJ700-X and XJ750-X models, stock height. Pair:
$ 449.95




Rust Removal and Prevention Fluids:

rr4) Concentrated RUST REMOVER magically dissolves rust on all iron-based metals. Spray or wipe directly onto rusty parts, or immerse the items in a container full of this solution (diluted), let it work, then rinse off. Highly concentrated, easy to use, leaves the metal surfaces grease-free and ready for further processing or finishing. GREAT FOR DE-RUSTING THE INSIDE OF GAS TANKS!

NOTE: the following product can only be shipped via ground transport (which thus eliminates the Priority Mail level of service for this item) and cannot (and will not----don't even ask!) be shipped outside of the continental USA. Therefore it may have to be shipped in a separate package from the remainder of your order, and will thus incur additional shipping charges.

HCP12358 Aftermarket RUST DESTROYER FLUID, in a 16-ounce plastic bottle. Best to transfer into an old windex spray bottle (etc.) and use with a spray nozzle. After use, it is recommend that the de-rusted parts be immediately painted (or similar) or coated with fogging oil, lubricant, or other surface finish to prevent flash surface-rusting of the newly cleaned parts. Each:
$ 19.95


Here are a few other good ways to de-rust metal products:

- soak iron (steel) parts in heated vinegar (doesn’t matter what kind) overnight, then rinse with clean water. and finally spray with fogging oil (or similar) to prevent rust from re-forming.

http://www.mopedarmy.com/wiki/Removing_rust_from_a_gas_tank

http://users.eastlink.ca/~pspencer/nsaeta/electrolysis.html

http://www.moreg.org.au/dissolving_rust.htm

http://www.htpaa.org.au/article-electro.php

http://xjbikes.com/forums/index.php?threads/32838

http://xjbikes.com/forums/index.php...val-no-frills-easiest-fastest-cheapest.48196/

http://www.robertscycle.com/chrome-clean.html

http://www.xjbikes.com/forums/threads/teds-2nd-82-xj750-maxim-bobber-project.47929/#post-478002

http://www.practicalmachinist.com/vb/general-archive/rust-removal-using-molasses-90452/




HCP20866 Aftermarket industrial-strength RUST PREVENTION COATING, in a standard 10-ounce aerosol can. This protectant goes on clear and prevents rust from forming on all surfaces (including bare metal) for up to a year, even in an outdoor environment. Can be applied over painted surfaces, or easily removed with mineral spirits. Great way to protect "work in progress" type projects.
$ 18.95

HCP20867 Aftermarket industrial-strength RUST PREVENTION COATING, in a standard 10-ounce aerosol can. Heavy-duty formula goes on clear, and then dries to a wax-like finish, prevents rust from forming on all surfaces (including bare metal) for up to a year, even in humid or outdoor environments. Easily removed with mineral spirits. Great way to protect "work in progress" type projects.
$ 19.95

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