11-speed Road crankset Aluminum arms w/ alloy spider and rings minimizes weight while maximizing stiffness Stiffer X-Glide chainrings feature thicker construction, advanced shift timing pins and ramps, which are optimized for shifting with the YAW front derailleur Does not include BB30 or PF30 BB 170x52/36 BB30 BLK 110x5B TBA 2x11