| - Chainring: 42/28T, 40/28T, 38/24T, 36/22T. Teeth 6061/T6 CNC or 7075/T6 CNC or Steel or alloy(Pressed chainring) |
| - Crank: Forged 6061/T6 Alloy |
| - Length: 170,175mm |
| - BCD: 104/64mm |
| - Speeds: 9~12s |
| - BB-Axle: Ouside Bearing 12S BB92 |
Tel: +886-4-23332756 Fax: +886-4-23322766 E-mail: doris@s-shun.com