The Shimano CS-R7101 is the suitable cassette for new Ultegra 105 Di2 R7100 12-speed group. From sprinting on the flats to climbing steep inclines, the 11-34T cassette has you covered. It is compatible with both SHIMANO 11-speed and 12-speed FREEHUB bodies.

In contrast to the CS-R7100, it's compatible with both electronic and mechanical groupsets. 

Scope of delivery

1 x Shimano 105 CS-R7101 12-speed Cassette incl. Lock Rin