Motorcycle Rear Drum Hub Cushion Rubber Damper For Benelli LEONCINO 500 BN TNT TRK502 TRK502X TRK 502 502X 5PCS SET MODEL Fit For Benelli LEONCINO 500 BN TNT TRK502 TRK502X TRK 502 502X , rear drum inner slot layout ,adapts daily street country road riding Direct embed installation ,aligns hub inner notch structure ,no hub or extra fixing parts needed Buffers power transfer vibration between hub sprocket ,reduces collision noise ,smoothes power output during acceleration Elastic rubber main body with reinforced inner structure ,adopts stable elastic material ,slows hardening deformation over long mileage Supplied as complete 5 piece set with unified sizing ,fits tightly into hub groove ,avoids loose gap during speed running