PRODUCTS

Crank arm: alloy forged. 
BCD: 144mm.   
Length: 150~175mm.
Alloy 7075-CNC Chainring,  
Teeth number: 39T to 100T(Any triple teeth for your need).
Color: silver or black, 
           (Available in other colors).
Compatible BB-axle: square or ISIS splined or Integrated BB-set.