| - Chainring: 40, 42, 44, 46, 48, 50, 52T |
| - -: Teeth: 6061/T6 CNC or 7075/T6 CNC |
| - Crank: Forged 6061/T6 alloy |
| - Length: 165, 170, 172.5, 175mm |
| - Speeds: 9~12s |
| - BB-Axle: Ouside Bearing |
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| (GRAVEL) SS-421 | |||||||
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| Tel: +886-4-23332756 Fax: +886-4-23322766 E-mail: doris@s-shun.com | |||||||