Shimano 105 CS-R7101-12 12Speed Road Bike Bicycle Cassette Cog 11-34T 12s Shimano 105 CS-R7101-12 12Speed Road Bike Bicycle Cassette Cog 11-34T 12s

The CS-R7101-12 is a 12-speed cassette from the Shimano 105 road bike series. In contrast to the CS-R7100, it's compatible with both electronic and mechanical groupsets.  With only about 15...

The CS-R7101-12 is a 12-speed cassette from the Shimano 105 road bike series. In contrast to the CS-R7100, it's compatible with both electronic and mechanical groupsets.  With only about 15...