Do you want a stronger axle setup but don't want to invest in the splined axle system? JR RACE CAR has designed an economical alternative without sacrificing strength--a wider sprocket hub for single or dual sprocket systems. This wider sprocket hub now has 2" of contact area on the axle. Combine this heavy duty hub with our solid axle and you have one tough setup! Hardware kit includes long and short bolts for single or dual sprockets, nuts, bolts for clamping hub to axle, and keystock.