absoluteBLACK Carbon Ceramic derailleur pulleys OSPW SHI DA 9100 / Ultegra 8000

Compatibility: Shimano Dura Ace 9100/9150/9170, Ultegra 8000 / 8050. For cartridges up to 32z.
Weight: 71g
Made of carbon-polymer, AL7075, rubber, ceramic.

Product ID: 17206

About the brand Absolute Black

WORLD'S BEST OVAL CHAINRINGS THAT HELP YOU INCREASE YOUR PERFORMANCE BY UP TO 9%. Oval chainrings don't produce more power, they increase your pedalling effectiveness. This means they reduce the component of your pedal pushing force, which doesn't contribute to moving your bike forward. The less force you waste the more energy you preserve, allowing you to push harder when it counts or simply reduce tiredness.