These Absoluteblack premium bolt covers are designed Only for Shimano Dura-Ace 9100 & 9150 Di2 cranks. They cover the small step down between chainring and crank arms, completing the entire look of the crank.
Compatibility: Dura-Ace 9100, 9150 Di2, Ultegra 8000, R8050 Di2. (also fit nicely with Rotor chainrings). NOT compatible with our Sub Compact chainrings.
Does not fit Shimano 105 R7000 nor R5800