Kunray PJ-TOOTH 25H T8F 420 Tooth Sprocket For Pocket Bike Mini ATV Quad E-scooter Bicycle Motor

* The combination of ultra-high strength substrate material and extremely wear-resistant surface, significantly increases the service life of sprocket,durable and can be used for a long time.
* Make the chain drive more stable, higher efficiency. In the same condition of front sprocket unchanged, larger rear sprocket can increase torque and climbing ability, the smaller rear sprocket can increase speed and save fuel.It can perfectly replace the old original one.