Parts & Accessories for off-road motorcycles and Quads

Piston Prox Kawasaki JS440

ProX pistons are precision machined on the latest, state of the art CNC equipment. 

The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. 

ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.

Size: 68.25mm Select below from all available options
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Bore - Actual 68.25 mm
Bore - Standard 68.00 mm
Bore - Oversize 0.25 mm
Dome Type Dome N/A
Total Height 70.00 mm
Country of Origin Japan N/A