CN-M8100 XT/Ultegra 12 Spd. Valves In order to ensure that

In order to ensure that your Arena swimsuit provides you with the best possible performance for a long time to come

Pull board and kickboard 2 and 1 advice

- Provides support and comfort at a great value

no-tool adjustable spline design integrated into lock body

CN-M8100 XT/Ultegra 12 Spd. Valves In order to ensure thatThe M8100 chain provides enhanced chain retention thanks to an extended portion of the inner plate. The new chain features quick link assembly and SIL TEC treatment for extended offroad durability. Proprietary design ensures smooth shifts and strength Extended inner plate improves chain engagement and retention DYNAMIC CHAIN ENGAGEMENT+ Compatible with 12 speed drivetrain Easy connection (SM CN910 12) Non reusable Quick assembly tool QUICK LINK