(Crankset for track or single-speed)

● Crank arm alloy forged, BCD: 144 or 130.
    Length: 160,165, 170, 172.5, 175.
    Finish: polish black or silver or sandblast black anodized.
● Teeth size:1/2"x1/8" or 1/2"x3/32".
● Teeth of number:46T～54T alloy 7075 CNC.
● Color: black anodized, polish silver,(Option gold/blue/red/green/puple/white/and Powder coating others color.)