⚙️Compitable with Coleman CT100U, RB100 and CT100U Trail mini bikes.Monster Moto / Mega Moto MM-B80,Motovox MBX10 and MBX11 mini bikes ⚙️75 tooth sprocket,only fit for #35 chain,overall diameter: 232mm [9.13"]. ⚙️Package Include:1 x 420# drive chain sprocket 75T,6x sprocket mounting bolts ⚙️This rear sprocket is used on the 154F, 105cc engines found on some mini-bikes and go-karts. This sprocket has 75 teeth and is compatible with #35 chain ONLY. This is the rear sprocket on the Coleman CC100X, CT100U and RB100 mini-bike. ⚙️Our #35 chain 75 tooth rear sprocket for Coleman CT100U minibikes is made of machined steel. FITMENT: Fit for 97cc 98cc 100cc 3.0hp Coleman CT100U CC100X RB100 trail 100 Mini Bike, Coleman CK100 SK100 Go Kart Please check the measurements or contact us before you buy.