PISTON KIT 2010 KX250F 77mm C, WOSSNER 8777DC KAWASAKI MX

This Wossner forged piston kit features a 77.02mm bore size (76.98mm actual), providing a +0.02mm oversize fitment for the 2010 Kawasaki KX250F. Engineered in Germany, the piston incorporates a two-ring design and an elliptical profile for uniform pressure distribution under heat expansion. It maintains OEM compression specifications while ensuring efficient heat dissipation and durability.

Features

• Forged piston with two-ring configuration for strength and reliability

• Elliptical design ensures even thrust load distribution under thermal stress

• Designed for effective heat transfer from combustion chamber to cylinder walls

• Manufactured in Germany

Specifications

• Bore Size: 77.02mm (actual 76.98mm)

• Displacement: 250 cm³

• Stroke: 53.60 mm

• Clearance: 0.04 mm

• Compression Ratio (Wossner): OEM

• Compression Ratio (OEM): 13.20:1

• Dome Volume: -2.50 cm³

• Compression Height: 19.60 mm

• Lock Part Number: CW16

• Pin Part Number: WP070

• Ring Set Part Number: 770XAS-2

Cross-Reference OEM Part Numbers

• OEM: 13001-0115

• Wiseco: 40009M

• Vertex: 23566

• ProX: 01.4340

Vehicle Fitments

• 2010 Kawasaki KX250F