Racing Rear Clutch 4 Stroke GY6 50cc QMB139 Chinese Scooters Motors PartsDescription Durable and convenient Simple design and easy to use The outer drum and the oval vents are for speeding up the cooling Specification Color BlackSize as the below picture shownMaterial MetalFitment The Compatibility Is Just For Reference Please Compare the follows With Your Original One before Purchasing Fits 4 Stroke 50cc Chinese ScootersNote 1 Please ensure what you received is as expected and check compatibility with measurement before purchase 2 Please allow 0 5 1 inch difference due to manual measurement 1 inch 2 54cm 3 The color of the actual items may slightly different from the listing images due to different computer screen thanks for your understanding 4 Instruction is Not included Package Included 1 X Racing Rear Clutch