PISTON KIT 14-15 CRF250 76.80, 8912DB WOSSNER HONDA

This Wossner forged high-compression piston kit features a 76.81mm bore size (76.77mm actual), offering a +0.01mm oversize fitment for Honda CRF250R models from 2014 to 2015. Made in Germany, the piston includes a high-compression dome and an elliptical profile for even thrust load distribution, ensuring reliable performance and durability in high-stress conditions.

Features

• Forged high-compression piston with precision +0.01mm oversize

• Elliptical design ensures even pressure distribution under thermal expansion

• Optimised for combustion heat transfer and structural integrity

• Manufactured in Germany

Specifications

• Bore Size: 76.81mm (actual 76.77mm)

• Displacement: 249 cm³

• Stroke: 53.80 mm

• Clearance: 0.04 mm

• Compression Ratio (Wossner): 14.50:1

• Compression Ratio (OEM): 13.50:1

• Dome Volume: +0.10 cm³

• Compression Height: 28.00 mm

• Theoretical Weight: 19.00 g

• Lock Part Number: CW16

• Pin Part Number: WP070

• Ring Set Part Number: 768XAS

Cross-Reference OEM Part Numbers

• 56-W958.B.WO.HC

Vehicle Fitments

• 2014 Honda CRF250R

• 2015 Honda CRF250R