PISTON KIT 08-12 WR250X 77.00, COMP. 13.5:1 WOSSNER 8729DB

Wossner Forged Piston Kit for Yamaha WR250X

Upgrade your Yamaha WR250X with this high-performance forged piston kit from Wossner. Manufactured with precision in Germany, this piston is engineered for superior strength and optimal engine performance. Its advanced design ensures efficient heat transfer to the cylinder walls, promoting better combustion and longevity. The unique elliptical shape of the piston provides a consistent bearing surface, even under extreme heat expansion, effectively distributing thrust loads and preventing piston collapse for a smoother, more reliable ride.

Key Features:

• Forged construction for exceptional durability and strength.
• Designed for optimal heat transfer, enhancing combustion efficiency.
• Features an elliptical design that ensures uniform load distribution under heat.
• Precisely manufactured in Germany for quality assurance.
• Reduces localized pressure and evenly distributes thrust loads to prevent piston collapse.

Specifications:

• Bore: 77.01mm
• Diameter: 76.97mm
• Display (cm³): 249
• Stroke (mm): 53.60
• Clearance (mm): 0.04
• Compression Height (mm): 22.90
• Dome Volume (cm³): -5.90

Included Components:

• Wossner Piston (Part Number: 8729DB)
• Lock Ring (Part Number: CW17)
• Piston Pin (Part Number: WP083)
• Ring Set (Part Number: 770XAS-2)