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2Bros MCS LTD Company number 16176735 - Vat No. GB 508324506 - info@2bros-mx.com - Tel: 03301333748
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