PISTON KIT TRX XR400EX 85 44

4 Stroke Piston Kit

• In-house designed and manufactured; all forgings are produced in Wössner’s company-owned forging operation
• 4-stroke pistons are made using a double-bridged forging design
• Lightweight pistons with the tightest piston-wall clearances in the industry give you a quieter running engine
• Standard and oversize pistons for most models, with high compression ratios available for 4-stroke applications
• All piston skirts are supplied with a Moly coating to reduce friction and assist in break in
• All piston kits include piston, ring, wrist pin and pin locks
• Wössner piston kits are used by leading Supercross, Arenacross and MX GP teams