Shimano Dura Ace crank arm bolt & dust cap
If you have Dura Ace 7710 crank arms and don't have bolts, these are the missing pieces.
For use with Shimano Octalink crank arms only. These will not work with older Dura Ace 7600 square taper crank arms.
• self-extracting mechanism
• steel bolt & aluminum cap w/ rubber seal