This genuine FACTORY™ hard wearing sprocket is made of steel and will fit most pit bikes
A bigger rear sprocket increases acceleration, but may reduce top speed.
A smaller rear sprocket increases top speed, but will reduce acceleration.
- Teeth - 39
- Pitch - 420
- Sprocket calculation - 6mm thick = 420 pitch, 7mm thick = 428 pitch.
- Before ordering a bigger sprocket check you have enough chain length.
Includes 4 bolts and retainer plates.