GOOFIT 17mm Front Sprocket 420-12T for 50cc 70cc 90cc 110cc 125cc 140cc 150cc Pit Dirt bike Motorcycle ATV Dirt Bike (420-12T)

Inner diameter:17mm/0.67";Hole distance:30mm/1.18"(Please refer to the second picture) Model:420 Style 12 teeth 17mm Chain Material:Steel with hot-treatment,long durable.Package Contain 1 sprocket come with free holder and bolts Warranty:We are always available to help our customers.Please message us for replacement or refund if you are not satisfied with the order