Vertex VTK23383B Cast Replica Top End Piston Kit - Standard Bore 55.96mm, Standard Compression engine-clutch-components-slipper-clutches 2001-2004 Aprilia RST1000 Futura

2001-2004 Aprilia RST1000 Futura

1999 Arctic Cat ZR 500

2003-2006 Yamaha YZ450F

2022-2025 CFMOTO UFORCE 1000 XL

Superior additive package keeps engines clean

Vertex VTK23383B Cast Replica Top End Piston Kit - Standard Bore 55.96mm, Standard Compression engine-clutch-components-slipper-clutches 2001-2004 Aprilia RST1000 FuturaBore: 55. 96mm Compression: Standard Compression Sizing: Standard Bore 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 (not forged) with 18% silicone content, which produces an extremely light but very strong piston. Forged pistons are forged from 2618