??Save your choice time: A high performance clutch kit that meets your driveline needs eliminates the time and effort required to find the right model (and the risk of buying the wrong model). ??You will get: 1*clutch Assembly 1*Variator Assembly 1*Gates 743 belt, You only need to confirm the corresponding engine or model. These three parts are applicable in sets. ??This is a high-performance clutch, please pay attention to the parameters??Fits GY6 125cc and 150cc 4-Stroke Engine 19 Splines Inside The Clutch Drum/Bell OD of Drum: 136mm??ID of Drum: 125mm ID of spline area: 14.4mm ??The Belt is made of high heat-resistant and high-strength materials??Belt key parameter743x20, Premium belt provides longer durability for high performance applications. ??Variator Assembly for gy6 150cc??Roller Size??18*14mm Drive Face Size:Spline Shaft 19 teeth; Diameter 117mm; Hole Diameter 15mm Variator Size:Diameter 108mm ; Variator Pin Length:52mm; Variator Pin OD 24mm ID 15mm??Fit GY6 125cc&150cc