Absolute Black Crank Bolt Covers For Dura-Ace 9000 & Ultegra 6800-Black

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List Price Rs.4,623

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Absoluteblack premium bolt covers are designed specifically for Shimano 110/4bcd Ultegra 6800 and Dura-Ace 9000 cranks. They cover the small step down between chainring and crank arms, completing the entire look of the crank. With these covers your crank looks great again.


  • Our aesthetic bolt covers are not compatible with Sub Compact oval chainrings
  • There are two separate versions. One fits Ultegra 6800 and the other one Dura-Ace 9000. 
  • While tightening the provided bolts to the recommended torque, it is necessary to prevent the bolt covers from spinning, by holding them down with your fingers. If the covers are not held while torqueing the bolts, they might get damaged.

Simply put, these bolt covers for Ultegra and DuraAce cranks make your crank look even better with AbsoluteBlack or Rotor Oval chainrings. When you switch to Absoluteblack oval rings, you create a small step down at the connection point between crank arms and chainring bolt hole area.These bolt covers fix this making your crank look great again. 

How to mount Absolute Black Bolt Covers:

Remove your current bolts and nuts completely. Place the bolt covers into their specific positions from the front, so they sit nice and flush with crank. Then use provided short bolts with torx T30 sockets and screw them from the back. You should use about 5-7Nm of force. 

  • Mass/Size:13g
  • Color:Black, Ultegra Grey, Red
  • Compatibility: Dura-Ace 9000, Ultegra 6800. Both sets also work with Rotor chainrings. NOT compatible with our Sub Compact chainrings
  • In the Box: 4 covers and 4x T30 torx bolts
  • Material: 7075 T6 aluminium
  • Finish: Type II anodizing


absoluteBLACK is the largest mountain bike oval chainring manufacturer in the World with years of expertise in this field. We produce the highest quality, beautifully designed and engineered oval chainrings on the market with impeccable attention to detail.

Our studies led by the University of Primorska, Slovenia show significant differences when using absoluteBLACK Oval chainrings compared to round. Up to 9% increase of Force effectiveness, up to 7% less oxygen consumption, up to 15% less Ventilation (breathing) and up to 10% heart rate decrease when using oval chainrings versus round. What does that mean? In short, it means that you will consume less energy at the same power output using Oval chainrings so you can ride for longer and/or faster. 

Why AbsoluteBLACK oval chainrings work?

AbsoluteBLACK oval chainrings deliver power more smoothly to your rear wheel. You will actually feel your pedal stroke to be more "round" with an Oval chainring than with a round chainring. This means you are better able to generate and maintain constant cadence. Because oval chainrings reduce the peak loads on knee joints.

Sizing Information

  • Size : Dura-Ace 9000, Ultegra 6800

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