- Hole spacing of fixing : 90mm
- Central bore : 58mm
- Available in 37 teeth
- *Not from the chain : #420
INFO : If you increase the transmission, increase the maximum speed, but decrease the torque of your engine and lower the transmission, raise the torque of your engine, but reduced the maximum set speed.
*TIP : you know not, not from your chain, you can simply measure the thickness of your courrone with a caliper.
- Thickness 5mm to 6mm : 420
- Thickness 7mm to 8mm : 428