Retainer Plate Fit For YX 150cc 160cc Pit Dirt Bike Secure Engine Fastening Reliable Durability Made by , this clutch retainer plate is compatible Fit For YX 150cc YX 160cc horizontal four-stroke pit dirt bike engines thickened plate Fit For integral quenching treatment deformation under torque clutch compression holes match clutch assembly structure, firmly clutch springs to avoid displacement during high-speed shifting Smooth surface finish reduces friction with clutch springs, abnormal rattling noise when accelerating decelerating Standard Fit For OEM dimension design supports direct bolt-on replacement without , grinding or extra during clutch overhaul