Wossner forged piston kit with a 100.94mm bore is designed for the Honda XR650R (2000-2007). Engineered for strength and optimal heat transfer, the piston features an elliptical design that ensures even load distribution, reducing localized pressure and preventing piston collapse. Manufactured in Germany, it maintains OEM compression specifications.

Features

• Forged construction for durability and high performance


• Optimized heat transfer to cylinder walls for improved efficiency


• Elliptical design ensures uniform bearing surface and prevents piston collapse


• Manufactured in Germany for high-quality standards

Specifications

• Bore Size: 100.94mm


• Display (Displacement): 644 cm³


• Stroke: 82.60mm


• Clearance: 0.06mm


• Compression Ratio: OEM specification (10.00:1)


• Dome Volume: -3.60 cm³


• Compression Height: 29.00mm

Cross-Reference OEM Part Numbers

• Piston Kit: 8575D100


• Lock: CW23


• Pin: WP024


• Ring Set: 1010XSY

Vehicle Fitments

• Honda XR650R (2000-2007)