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

We recommend a maximum 34T cassette for optimum gear change.

You should use a new chain. We recommend adding 3 to 5 links compared to your previous chain.

Weight : 68g

In this version, Nova Carbon Ceramic Derailleur Shimano Road 12S cage is only compatible with :

- Shimano Ultegra R8100-8150 Series

- Shimano Dura-Ace R9200-9250 Series

Please note, they are dry bearings so do not use lubricant.