Wossner forged piston kit with a 71.00mm bore, designed for Honda CR250R, MR250, and MT250 models from 1973 to 1974. Engineered for strength and durability, this piston enhances combustion chamber heat transfer and features an elliptical design to ensure even load distribution, reducing localized pressure and preventing collapse. Manufactured in Germany for high performance and reliability.

Features

• Oversized forged piston (+1.00mm) for increased durability


• Elliptical design for even thrust load distribution


• Optimized heat transfer to cylinder walls


• Manufactured in Germany for superior quality

Specifications

• Bore Size: 71.00mm


• Standard Bore: 70.94mm


• Displacement: 248 cm³


• Stroke: 64.40mm


• Clearance: 0.06mm


• Compression Ratio: 2-Stroke


• Compression Height: 32.00mm

Cross-Reference OEM Part Numbers

• Piston Part Number: 8152D100


• Lock Part Number: CW18


• Pin Part Number: WP033


• Ring Set Part Number: RSB7100 X 2

Vehicle Fitments

• Honda CR250R 1973-1974


• Honda MR250 1973-1974


• Honda MT250 1973-1974