Review on Enhance Your Motorcycle or ATV Performance with WEIYINGSI Sprocket Front 428-17T 17mm: Ideal for Dirt Bikes too by Josh Parson

This thing is mounted on a bike. Well I suppose it spins fast because the chain is around this and the other sprocket and the other sprocket is attached to the wheel and the tire is on the wheel and the tire is on the road and the bike is really going! I really can't see as there is a cover that goes over where the sprocket bolts on. Got this for a Vader 125cc Grom clone base from reviews and comments here and there. It was easy to install. The bolts that came with it were awful and snapped off, but I used the ones from the previous sprocket and they worked really well.