PISTON KIT 2010 KX250F 77mm B, WOSSNER 8777DB KAWASAKI HC

This Wossner forged piston kit features a 77.01mm bore size (76.97mm actual), offering a +0.01mm oversize fitment for the 2010 Kawasaki KX250F. Precision-manufactured in Germany, the piston includes a two-ring design and an elliptical shape that distributes thrust loads evenly, minimising stress and wear during engine operation. It maintains OEM compression characteristics for reliable performance.

Features

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

• Elliptical design promotes even load distribution during thermal expansion

• Engineered for efficient combustion heat transfer to cylinder walls

• Manufactured in Germany

Specifications

• Bore Size: 77.01mm (actual 76.97mm)

• 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