PISTON KIT 97-01 CR250 66.40, WOSSNER 8161DA1-RING, PISTON KIT 97-01 CR250 66.40

Wossner forged piston kit 8161DA is a standard size piston (STD) for Honda CR250R models from 1997 to 2001, featuring a 67.40 mm bore and a 66.34 mm actual piston diameter. Specifically designed as a 1-ring configuration, this German-engineered piston provides high durability and efficient thermal performance through its forged structure and elliptical design.

Features

• Forged construction for enhanced durability and strength

• Elliptical profile ensures uniform pressure distribution during thermal expansion

• Efficient heat transfer from the combustion chamber to the cylinder walls

• Made in Germany for precision and reliability

Specifications

• Bore Size: 67.40 mm

• Actual Piston Diameter: 66.34 mm

• Display (Displacement): 290 cm³

• Stroke: 72.00 mm

• Clearance: 0.06 mm

• Compression Ratio: 2-stroke (Wossner and OEM)

• Compression Height: 38.00 mm

Cross-Reference OEM Part Numbers

• Honda OEM: 13101-KZ3-L10

• Wiseco: 768M6640

Cross-Reference Component Part Numbers

• Piston Kit: 8161DA

• Lock: CW18

• Pin: WP033

• Ring Set: RSB6640

• Rod: P2021

Vehicle Fitments

• 1997 Honda CR250R (1-ring)

• 1998 Honda CR250R (1-ring)

• 1999 Honda CR250R (1-ring)

• 2000 Honda CR250R (1-ring)

• 2001 Honda CR250R (1-ring)