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Friction Reduction 101
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aluminum durability
Billet Dual chamber fork pistons replace the plastic stock pistons. Increased durability and more constant performance. $109.99

reduced flow creates more late stroke dampingA race developed spring seat that offers benefit to all riders on hardpack through sand.
The oil flow, which is reduced by the calibrated passages, improves reaction on hard impacts yet guarantees initial plushness. $99.95

Custom flow rates dependent on your needs
Our pre-machined spring seat. This spring seat gives us the ability to custom tailor the oil flow to your personal needs. $99.94

Bring modern performance  to your kx85Update the KX/YZ 85 to a modern level of bottoming performance. $119.95 
Ask us about our works internals. Give your kx 85 external rebound adjustment!

more low speed controlOn a standard production shock, the low speed rebound adjuster passage flows the same for compression and rebound. The rebound separator valve provides the ability to isolate the flow and tune each circuit more independently. $49.95

Finer adjustment range and looks greatWorks shock shaft clevis. $249.95

larger nitrogen capacity for more consistency Over sized shock bladder caps. More nitrogen= less pressure rise through out shock travel. $43.95

Chassis development Linkage Kits available for most models. 
Call us to discus your bikes needs!

PSF solutions

KYB PSF Midvalve Piston: $119.99

      Creates a more linear damping curve         Increases low speed damping        Decreases the high speed damping spike

      Designed with a DU bushing for decreased friction 

 Fits the 2013-14 Honda CRF450 and 2013-14 Kawasaki KX450F

      Skf Low Friction Oil and Dust              Seals: $70.00


      Improve Durability

      Reduced Friction

      Superior Sealing

SKF_Seal_Head       SKF Seal Head:


      Reduced Friction

      Increased durability

JM_Illinois_Pre-load_adjusterXtrig Pre-load Adjuster:

Adjust your pre-load with the turn of an 8mm T-handle. No hammer or punch needed!

JM Racing Illinois 342 W Embarras Street Sainte Marie, Il 62459 (618)-455-3152 mborgic@jm-racingmb.com

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