Wossner Piston Yamaha YZ250F 05-07 / WR250F 05-13 (Pro) (Hi-Comp)

Wossner is Germany's finest aftermarket forged piston and rod manufacturer and have over 25 years of experience in the high-performance racing industry. Top European racers and FIM World Champions rely on Wossner for only the best pistons, rods and customer service.

Features

• In-house designed and manufactured; all forgings are produced in Wossner'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
• All pistons include piston, ring, wrist pin and pin locks
• Wossner pistons are used by leading Supercross, Arenacross and MX GP teams
• Made in Germany

Specifications

• Piston Size: 76.96mm
• Oversize: Standard
• Wossner Compression: 13.50:1
• OEM Compression: 12.50:1
• Number of Rings: 2
• Replacement Rings: RIK77.00D
• Replacement Wrist Pin: WP070
• Replacement Circlip: CW16

NOTE: Wossner Piston Kits include the Piston, Wrist Pin, Circlips & Rings, Needle Bearings are not included.