Shimano Dura Ace FC-7710 Octalink Track Crank Set (NJS)

The finest, strongest and lightest track racing cranks in Japan.
Hollow arm, NJS-approved track racing crank set.
Comes with crank bolts, covers, and chainring bolt set.
These cranks suit 144pcd chainrings, and should be used only with the matching Dura Ace 7700 or 7710 NJS bottom bracket set, which you can also find at Track Supermarket.