Single chainring with double chain guard
Crank arm: alloy forged.
BCD: 144 or 130mm.
Length: 160~175mm.
Alloy CNC Chainring,
Teeth size: 1/2"-1/8" or 1/2"-3/32".
Teeth number: from 39T to 100T.
Color: silver or black,
(Available in other colors).
Compatible BB-axle: square or ISIS splined or Integrated BB-set.