Front motorcycle sprocket by JT Sprockets. This is the sprocket located in the engine, thus in the front part of the motorcycle. It is also called the "small sprocket" and is usually smaller in diameter than the rear sprocket. The one part of the chain is "attached" to the small sprocket, through which the movement is transferred to the rear wheel.

It has 15 teeth, which means that it has this specific number of teeth on its perimeter. The pitch of the chain, which is 525, is the distance between its pins. This is indicated by the first digit of the above number, while the other two digits refer to the width and strength of the chain.