This is a brand new rear chain sprocket
Fit Models:
most Chinese 50cc 90cc 110cc 125cc 150cc 200cc 250cc 300cc Chinese ATVs, dirt bikes, and quads
This sprocket has 40 teeth and is compatible with the 428 chain only
Will NOT fit Kazuma ATVs [ONLY Kazuma models 90cc & under use 428 chain]
All of the Chinese ATV brands, such as TaoTao, Buyang, Coolsport, Kazuma, Sunl, ROKETA, AIM-EX, etc
Dimension:
40 tooth 428 chain
Center Hold Diameter: 37.5mm
Mounting Bolt to Bolt: 57mm
Please also check with the factory for your bike to make sure.