Rear Sprocket - 428 - 46 Tooth - 58mm Center Hole - Tao Tao TBR7 620538 Threaded nipple on bottom: M16

Threaded nipple on bottom: M16 (16mm)

Ignition button

124 link - HiSun 500cc (2 Valve Head)

2009 - 2010  550 H1 EFI  545cc

Front fender is 16

Rear Sprocket - 428 - 46 Tooth - 58mm Center Hole - Tao Tao TBR7 620538 Threaded nipple on bottom: M16Dirt 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