BIG BORE CYLINDER KIT +5MM YZ85

$649.95

$783.95

You save $134 (17%)

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All piston skirts are coated with a hi-tech Molybdenum Disulphite coating for faster break-in time and increased piston life
Forged Big Bore pistons increase engines displacement, torque, and peak horsepower
All pistons are heat treated with a T-5 hardening and tempering cycle
Kits include piston, rings, wrist pin and circlips