Shimano Hollowtech II Triple Crankset Arm Spacer (3mm) - Y1GF11000
Shimano Hollowtech II Triple Crankset Arm Spacer (3mm) - Y1GF11000, Shimano Hollowtech II Bottom Bracket Parts Features: Fits all Shimano HollowtechII triple road cranks Shimano HollowtechII triple road cranks use one CR1377 on the right and one CR6774 on the left hand side Not used by Shimano HollowtechII mountain or trekking cranksets