Please identify X-PRO®. NO. 1 China Motorcycle Parts Brand, better than OEM parts.
New 420 Chain 37 teeth Rear Chain Sprocket
It is universal for most 50cc 70cc 110cc 125cc Dirt Bikes, Pit Bike
Inner Diameter : 58mm (2.28")
Mounting Bolt Pattern (center to center): 90mm (3.54")
Please check pictures and specifications for compatibility