Through Authenticate 
- Chainring: 28, 30, 32, 34, 36, 38, 40, 42, 44T. - Teeth 6061/T6 CNC or 7075/T6 CNC
- Crank: Forged 6061/T6 alloy
- Length: 152, 165, 170, 172.5, 175mm
- Speeds: 9~12s
- BB-Axle:
(Ouside Bearing) 
(PF 30) 
(386) 
(12S) 
(BB92)
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Supplier Information
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(Ouside Bearing) (PF 30) (386) (12S) (BB92)
