Shimano Dura Ace 7710 NJS track crank arms

The choice of many professional track racers, Dura Ace 7710 crank arms are stronger and stiffer than you'll ever need them to be. We promise.

• 144mm bcd

• NJS certified & stamped

• length: 165, 167.5, 170, 172.5, 175mm

• Q factor: 136mm

• M15 crank bolts, dust caps and chainring bolts included

• required bottom bracket: Dura Ace 7710 NJS Octalink for 68mm English-threaded frames or Dura Ace 7700 Octalink for 70mm Italian-threaded frames (sold separately)

• color: polished silver

• weight: 505g (165mm)