The Dura-Ace 7900 cassette is lighter and stiffer thank ever thanks to its updated alloy carrier. This model works best when used with the 7900 series chain but it also compatible with older Shimano 10 speed chains.
This version of the CS-7900 Cassette is available in 11-21T.
- 11/21 Tooth (11, 12, 13, 14, 15, 16, 17, 18, 19, 21); 155 grams
A description of the different types of bottom brackets, the bearings for bike cranks.
You wanna go fast? Join the ceramic revolution!
An introduction to road bike cranksets.