PISTON KIT 1987 CR125 55.50, WOSSNER 8126D150 HONDA MX

This Wossner piston kit has a 55.50mm bore size (55.44mm actual) and is designed for high strength and efficient thermal management. It is forged in Germany with an elliptical design to ensure uniform thrust load distribution under heat expansion, which helps to eliminate localised stress and reduce the risk of piston collapse. Features include forged construction for enhanced structural durability, an elliptical profile for even load distribution during thermal expansion, and optimisation for efficient heat transfer from the combustion chamber to cylinder walls. Specifications include a bore size of 55.50mm (55.44mm), display of 124 cm³, stroke of 54.00 mm, clearance of 0.06 mm, compression height of 28.00 mm, and a 2-stroke compression ratio (Wossner and OEM). Cross-reference OEM part numbers include Piston Kit 8126D150, Lock CW14, Pin WP025, Ring Set RSB5550, and Part No. 56-W553+P6.WO. The weight is 182 grams.