The Vertex Top End Piston Kit For Yamaha/Fantic YZ/WR250 2002-2024, XX250 2022-2024, XE250 2023-2024 66.35MM is part of the latest collection from Vertex.

Features: All pistons are heat-treated with a T-5 hardening and tempering cycle All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life Cast piston kits are gravity-cast aluminum alloy with 18% silicone content, which produces an extremely light but very strong piston Top end piston kits include piston, rings, wrist pin, circlips and top end gaskets Manufacturer part number: VTK22584B-2View all Vertex Parts. View all Parts and spares.