MOOSE RACING Piston Kit - 66.35 mm MSE23630B Quantum-X Solid Helmet Core components deliver improved oil

Core components deliver improved oil flow over wide temperature ranges

Manufactured from high-grade aluminum

WILL NOT FIT ON 15-21 YZ125/250

lightweight thermal shirt with contrast stitching Pro Circuit factory flag logo on chest and Pro Circuit print on sleeve Screen printed with quality inks 60% Cotton/40% Polyester construction

Features an aramid fiber silencer body

MOOSE RACING Piston Kit - 66.35 mm MSE23630B Quantum-X Solid Helmet Core components deliver improved oilGravity cast aluminum alloy with 18% silicon to increase resistance to wear and decrease thermal distortion, thus providing a longer piston life Coated skirts ease break in, decreasing wear and aiding in lubrication Wear resistant piston rings Wrist pins are nitride coated, providing a hardened, wear resistant bearing surface Piston rings are compatible with OEM pistons Piston kits include piston, rings, wrist pin and circlips Replacement rings are