Vertex 23630B Cast Replica Piston Kit - Standard Bore 66.35mm, Standard Compression eyewear-goggles Hole cut to provide access

Hole cut to provide access to adjustment clickers without removing guard

Reduces temperature and increases power output

1997-2001 Yamaha CW50 Zuma II

2009-2010 KTM 690 Duke

Vertex 23630B Cast Replica Piston Kit - Standard Bore 66.35mm, Standard Compression eyewear-goggles Hole cut to provide accessBore: 66. 35mm Compression: Standard Compression Sizing: Standard Bore Fits KTM 250 EXC 06 18. Fits KTM 250 EXC TPI 18. All piston skirts are coated with a hi tech Molybdenum Disulphite coating for faster break in time and increased piston life. Cast Replica piston kits are gravity cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston. Forged Replica pistons are forged from 2618 aluminum