Vertex Cast Replica Top End Kit Yamaha YZ250(X) (99-22) | VTK22584 Size:66.35/STD, B Piston This design results in a

This design results in a finely tuned bolt on performance silencer that maximizes bottom and mid rpm power

Yamaha TTR 125 (2000-UP)Yamaha TTR 230 (2005-UP)

Honda CRF450R ('09-'10)

Polaris RZR 800 EPS 2013

CFMOTO ZFORCE 600 2015

Vertex Cast Replica Top End Kit Yamaha YZ250(X) (99-22) | VTK22584 Size:66.35/STD, B Piston This design results in aVertex Top End Piston Kit provide everything you need for your top end rebuild, eliminating the hassle of sourcing components separately. Kit includes a Vertex piston, rings, wrist, pin, circlips and a top end gasket kit. Exact fit A, B, or C pistons match the cylinder bore perfectly to maximize power and performance. Kits are available for both 2 stroke and 4 stroke applications. 2 stroke applications include a wrist pin bearing. 4 stroke