Nova Ride Rear Derailleur Cage OSPW Oversized Pulley Wheel Systems Shimano R89 Ultegra/Dura-Ace 11s, Blue

Designed by our French Engineers Nova Carbon Ceramic rear derailleur improves the fluidity of your transmission, enhance efficiency to satisfy the most demanding.
Made in very high-end materials: an ultra-light carbon fiber and full ceramic sealed bearings.
Two Oversized aluminum wheels, which coupled with full ceramic sealed bearings decrease the chain winding angle with minimal friction.

This product is composed of a carbon cage and two 7075 aluminum pulleys (14 & 17 teeth) with full ceramic sealed bearings.

Please note : In this version, Nova Carbon Ceramic Derailleur cage is only compatible with the Shimano Ultegra R8000-8050-8070 / Dura-Ace R9100-9150-9170.

Features
Weight: 68 g

Watt Saved: 4 - 5 W compared to a conventional cage.