Rear Sprocket - 428 - 46 Tooth - 58mm Center Hole - Tao Tao TBR7 620538 This bearing hub goes on

This bearing hub goes on the rear of some go-karts

2009 - 2010  550 H1 EFI  545cc

Ignition button

2 mounting holes on top on both the front and back of footrest

center-to-center

Rear Sprocket - 428 - 46 Tooth - 58mm Center Hole - Tao Tao TBR7 620538 This bearing hub goes onDirt Bike Rear Sprocket 428 46T This rear sprocket is used on the Chinese 125cc 250cc engines. This sprocket has 46T and is compatible with the 428 chain ONLY. Sprocket details: #428 chain 46 Teeth Center hole diameter: 58mm (2. 28 in) Mounting holes distance: 63. 5mm (2. 50 in) side to side Bolt circle diameter: 90mm (3. 5 in) 10. 6mm bolt holes Overall diameter: 190mm (7. 48 in) Flat on one side 607290 Be sure to measure your chain or current