PISTON KIT 86-96 CR250 68.50, WOSSNER 8021D210 HONDA MX

Wossner Forged Piston Kit 68.50mm Bore – Honda CR250R (1986–1996)
This Wossner forged piston kit is intended for Honda CR250R models from 1986 to 1996. With a 68.50 mm bore and a piston diameter of 68.44 mm (+2.10 mm oversize), this kit is ideal for significantly overbored or re-sleeved cylinders. The piston’s forged aluminium construction ensures high mechanical strength, while the elliptical design enhances thermal performance and evenly distributes thrust loads to reduce wear. Manufactured in Germany to meet strict engineering standards.

Features

• Forged for superior durability and resistance to heat and stress

• Optimised combustion heat transfer for enhanced engine cooling

• Elliptical geometry supports uniform bearing surface under thermal expansion

• German precision engineering ensures reliable fit and function

Specifications

• Bore Size: 68.50 mm

• Piston Diameter: 68.44 mm

• Engine Displacement: 249 cm³

• Stroke: 72.00 mm

• Clearance: 0.06 mm

• Compression Height: 38.00 mm

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

Cross-Reference Wossner Part Numbers

• Piston Kit: 8021D210

• Lock: CW18

• Pin: WP033

• Ring Set: RSB6850 x 2

• Rod: P2021

Vehicle Fitments

• 1986 Honda CR250R

• 1987 Honda CR250R

• 1988 Honda CR250R

• 1989 Honda CR250R

• 1990 Honda CR250R

• 1991 Honda CR250R

• 1992 Honda CR250R

• 1993 Honda CR250R

• 1994 Honda CR250R

• 1995 Honda CR250R

• 1996 Honda CR250R