For 47cc 49cc 2 Stroke Chinese Kids Mini Moto Pocket Bike Gas Scooter ATV Quad Pit Dirt Bike Goped T8F Chain Can Only Work With 25H Sprocket,Please Make Sure Your Bike With The 25H Sprocket Chain Size:Chain Style: T8F 116 links/ Length (folded in half): 460mm(18.11inch) ??Thickness: 11.5mm(0.450.45inch) , Width: 7.5mm(0.3inch)/ Sprocket Size: The inside diameter: 54mm(2.13inch)??The minimum hole diameter: 6mm(0.24inch)??Sprocket Diameter: 140mm(5.51inch)??Centre to centre: 65mm(2.56inch) Package Included: 1 x T8F 116 Link Chain+1 x T8F 54 Tooth Sprocket+5 x T8F master link Please Carefully Check All Pictures And Sizes In The Listing To Make Sure It’s The Correct Product You Need T8F 54T Tooth Rear Dirve Sprocket Cog With 116 Links Chain and Master link Kits For 47cc 49cc 2 Stroke Chinese Kids Mini Moto Pocket Bike Gas Scooter ATV Quad Pit Dirt Bike Goped Specifications: T8F Chain Can Only Work With T8F Sprocket,Please Make Sure Your Bike With The T8F Sprocket Chai