Vertex Cast Replica Top End Kit Yamaha YZ250(X) (99-22) | VTK22584 Size:66.35/STD, B Piston Nm and kg-m

Nm and kg-m

Ultimate traction over wet rocks and slippery logs

Optimum Air Flow

add to that the legendary Yoshimura exhaust note and it's over

Converts stock fixed axle design to floating type to improve traction and handling

Vertex Cast Replica Top End Kit Yamaha YZ250(X) (99-22) | VTK22584 Size:66.35/STD, B Piston Nm and kg-mVertex 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