PRODUCTS

Crank arm: alloy forged. 
BCD: 130 or 144mm.  
Length: 160~175mm.
Alloy 7075-CNC Chainring, 
Teeth number : 39T to 100T. (Any double teeth)
Color: silver or black, 
           (Available in other colors).
Compatible BB-axle: square or ISIS splined or Integrated BB-set.