Wide front sprocket with 10 teeth D-Shaft
Always replace the front sprocket together with the rear sprocket and chain.
In order to assit you in making the correct choice of sprocket, please see the following information.
The following models are standard with 10 teeth front sprockets:
- OSET 20 Eco
- OSET 20 Racing
The following models are standard with 9 teeth front sprockets:
- OSET 20 Lite
- OSET 16 Racing
- OSET 16 ECO from 2014