PRODUCTS

Crank arm: alloy forged. 
BCD: 110/74mm. or 130/74mm,  
Length: 180~220mm.
Alloy 7075-CNC Chainring:
BCD110/74: 50/34/24T, 48/38/28T, 48/36/26T, 46/34/24T.
BCD130/74: 54/42/32T, 53/39/30T, 52/42/30T, 52/39/30T,
Color: silver or black, 
           (Available in other colors).
Compatible BB-axle: square taper, or ISIS-splined.