PISTON KIT 97-01 CR250 66.40, WOSSNER 8161DB 1-RING

Wossner forged piston kit 8161DB is a +0.01 oversize piston designed for 1-ring configuration Honda CR250R models from 1997 to 2001. With a 66.41 mm bore and 66.35 mm actual piston diameter, this German-made piston is crafted for high durability and optimised thermal and mechanical performance, using Wossner’s elliptical piston design.

Features

• Forged piston construction for strength and longevity

• Elliptical shape distributes thermal and mechanical loads evenly

• Superior heat transfer from combustion chamber to cylinder walls

• Made in Germany for precision engineering

Specifications

• Bore Size: 66.41 mm

• Actual Piston Diameter: 66.35 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 Component Part Numbers

• Piston Kit: 8161DB

• 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)