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For mini bike ¾ in shaft clutch assembly that is perfect as OEM replacement and sourced from leading manufacturers in the world, check stocks at OMB Warehouse. Take the international standard Clutch Assembly with 3/4" Shaft & Belt Pulley for Go-Karts & Mini Bikes. Specifications are 3/4" shaft bore, Fits many belt-drive bikes & 'karts. Our centrifugal clutch assembly with a 3/4" shaft bore and belt pulley makes a great clutch for numerous go-karts and mini bikes. This is a strong clutch that sports a 1/2" drive belt pulley and is right for riders who prefer a drive belt pulley over a chain-drive system.  We also stock the mini bike ¾ in shaft clutch #420 10 tooth compatible with Coleman CT200U and CT200U-EX Trail Mini Bike. Some Coleman CT200U mini bikes use the smaller 5/8 inch bore clutch. Check your clutch before buying as you are buying the bigger 3/4 inch bore clutch. Also, check out our 2T centrifugal clutch ¾ in fits #35 chain 12 tooth for mini bike engine. It is right for engines with a capacity of less than 200cc. This product is made of super grade high impact resistant steel for longer life.