VERTEX PISTON KIT CAST 66.34/STD YAM HIGHWAY 21 Double stitched in high-stress areas

Double stitched in high-stress areas

Stronger inner sleeve to help minimize grip movement

2016 - 450 EXC-R 4-Stroke

- 2011-2012 Can-Am Outlander 650 EFI front - upper: 2011-2012

1993 - 500 MX

VERTEX PISTON KIT CAST 66.34/STD YAM HIGHWAY 21 Double stitched in high-stress areasFeatures: 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 for superior strength and durability Forged High Compression pistons improve power and torque across entire rpm