The Box Five Square Taper Cold-Forged Crank Arms are constructed of 6061 T-6 aluminum.Featuring a JIS square taper standard,theoversized bottom bracket interface showcases a step-down shape specific to the crank arm length meeting at the pedal boss. Unlike alternative options, no two lengths are the same.They are designed to be used with a square taper bottom bracket and 110mm 5-bolt chain rings(not included).

With this purchase, you get one right and one left crank arm only.

Color: Matte Black
Arm Length: 155mm