Product Review

Thickness:4mm;
Length:16.5cm;
Diameter of center hole:37mm
Compatible with stocked installation kit 9 hole set;
Compatible with 1.5 inch adapter of bike rear hub; Compatible with 1 inch adapter of bike rear hub ;
Compatible with spoke wheel and mag wheel which are designed for motorized bicycle;
Package: 1pc 40 teeth sprocket only;
Excluding bolts