PISTON KIT 97-01 CR250 68.50, 1-RING WOSSNER 8161D210

Wossner forged piston kit 8161D210 is a +2.10 oversize option for Honda CR250R models from 1997 to 2001 with a 1-ring configuration. It features a 68.50 mm bore and 68.44 mm actual piston diameter. Designed and manufactured in Germany, it incorporates Wossner’s elliptical geometry to ensure even pressure distribution and efficient thermal management in high-performance 2-stroke engines.

Features

• Forged piston for enhanced strength and wear resistance

• Elliptical design promotes uniform load distribution and reduces localised stress

• Superior heat transfer properties for efficient combustion chamber cooling

• Made in Germany with high precision

Specifications

• Bore Size: 68.50 mm

• Actual Piston Diameter: 68.44 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: 8161D210

• Lock: CW18

• Pin: WP033

• Ring Set: RSB6850

• 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)