CyclingCeramic Aero rear derailleur hanger for Shimano Ultegra 8150 & Dura Ace 9250 12-speed

Optimise the performance of your road drivetrain with the CyclingCeramic Aero pulley body and its oversized pulleys, compatible with Shimano Dura-Ace 9250 and Ultegra 8150 derailleurs.

Designed to excel in road cycling, these pulleys refine your drivetrain for precise gear changes and efficient power transfer. Rigorously tested by Friction Facts, the pulleys are among the fastest on the market, with a measured friction of just 0.033W, ensuring an ultra-efficient drivetrain. CyclingCeramic claims a time saving of 40 seconds compared to a standard Shimano 12-speed cage over 40 km.

Manufactured with precision engineering, these oversized pulleys guarantee smooth gear changes and increased durability for long road rides. Installation is easy, offering a hassle-free upgrade to your existing derailleur setup.

Technical specifications:

- Derailleur pulleys: CyclingCeramic upper 14-tooth and lower 19-tooth
- Derailleur pulley material: Aluminium machined in France
- Cage material: UD carbon
- Bearings: Hand-assembled ceramic bearings
- Compatibility: Shimano Dura-Ace 9250 and Ultegra 8150
- Cassette compatibility: Suitable for 12-speed cassettes from 11 to 34 teeth.
- Spring Tension Adjustments: 2 springs
- Speed: 12-speed
- Weight: 110 grams

In the box:

- Complete OSPW AERO system for Shimano Dura-Ace 9250 and Ultegra 8150
- CyclingCeramic oil for derailleur pulley bearings, 15 ml dropper bottle.
- Assembly instructions
- Sticker sheet