If you’re looking for a ridiculously light cassette but are hoping it will last more than one season, perhaps you should look into the new 10 speed cassette from KCNC. Weighing in between 107grams for 11-23 and 127grams for 12-27, KCNC’s Shimano compatible cassette is certainly light. What makes it special, is that all of the cogs are made entirely from 6/4 Titanium, meaning they should last longer than the lightweight aluminum cassettes.

In addition, the largest 8 cogs are all attached to a one piece 7075 aluminum carrier, with the last two cogs being machined completely out of one piece of Ti. Because of this, there are only two pieces to the cassette that contact the cassette body, and the pieces are large enough that they won’t dig into the cassette body’s splines. Currently, the cassettes are only available in 11-23 and 12-27 sizes in Shimano compatible versions only