PISTON KIT 2010 KX250F 77mm C, WOSSNER 8778DC KAWASAKI HC, COMP 13.9:1

This Wossner forged high-compression piston kit features a 77.02mm bore size (76.98mm actual), offering a +0.02mm oversize fitment for the 2010 Kawasaki KX250F. Built in Germany with a two-ring configuration, the piston includes an elliptical design for even thrust distribution and a high-compression dome for enhanced performance. It also features improved thermal efficiency and a hard Teflon-coated skirt for optimal bore conformity.

Features

• Forged high-compression piston with two-ring configuration

• Elliptical shape ensures even load distribution under heat expansion

• Engineered for optimal combustion heat transfer

• Includes hard Teflon skirt coating for bore adaptability

• 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): 13.90:1

• Compression Ratio (OEM): 13.20:1

• Dome Volume: -1.40 cm³

• Compression Height: 19.60 mm

• Lock Part Number: CW16

• Pin Part Number: WP070

• Ring Set Part Number: 770XAS

• Rod Part Number: P4002

Cross-Reference OEM Part Numbers

• OEM: 13001-0115

• Wiseco: 40009M

• Vertex: 23566

• ProX: 01.4340

Vehicle Fitments

• 2010 Kawasaki KX250F