X3-3100NW-T7
- Chainring: Narrow wide tooth . 30, 32, 34, 36, 38, 40, 42T. Teeth 6061/T6 CNC or 7075/T6 CNC
- Crank: Forged 6061/T6 alloy
- Length: 170, 175mm
- BCD: 104mm
- Speeds: 9~12s
- BB-Axle: Ouside Bearing PF 30 BB92
SHUN SHING INDUSTRY CO., LTD.
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