Description:

[ Size ] --- Inner Diameter: 54mm/2.126in, Outer Diameter: 115mm/4.53in.. [Application ] --- This rear chain sprocket fits for Razor E300 electric scooter, easy to install.. [] --- The rear chainwheels are manufactured to extremely tight tolerances from a special material developed to withstand the rigors of racing.. [Long Service Life ] --- Their advanced tooth profile, concentricity and accuracy of fit provide maximum power transfer and long-life.. [Professional Manufacture ] --- It is strictly in accordance with the standard requirements, it is worthy of your trust. Ideal replacement for your old or broken one..