- New 4-arm design for same stiffness with lighter weight
- Hollowtech II construction
- Hollowglide chainrings
- 11-speed compatible
- Same bolt circle diameter for compact and traditional double chainsets means that one crankarm fits all chainring sizes
Release Date: 2012-08-23
Details: With a unique four-arm spider and Hollowtech II construction putting strength just where its needed, the FC-9000 chainset sets new standards for stiffness and low weight.