YZF 250 2005 - 2007 WRF 250 2001-2014 STANDARD COMPRESSION 12.5:1 TOP END KIT
Vertex four-stroke top-end kits provide the principal components required for a thorough top-end engine rebuild. The forged aluminium piston is engineered for the pressures generated by a modern four-stroke engine, while its profile and application-specific compression ratio are designed to support dependable sealing and performance.
A molybdenum disulphide skirt coating helps reduce friction and wear during running-in. Each kit includes a complete piston with rings, wrist pin and circlips, together with the appropriate top-end gasket set and cam chain. Select the correct piston size for the measured cylinder bore and confirm compatibility before installation.