Kits Contents

• Piston: WO8612DB - WOSSNER PISTON YAM YZ250F 05-07 WR250F 05-13 76.97MM PRO
• Top End Gasket Set: GSYT810671 - WHITES GASKET SET TOP YAM WR250F/YZ250F 01-13

Wossner Piston

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: 76.97mm
• Oversize: +0.01mm
• 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

Whites Top End Gasket Set

Includes all gaskets and o-rings necessary to complete a piston (top end) rebuild. Competitive pricing made to meet and exceed OEM quality and designed as a direct OEM replacement the Whites Complete Gasket Set is your one-stop shop for engine rebuilds.

• Designed for OEM replacement
• Made from high-quality materials
• Meet or exceed OEM specifications
• Competitive pricing