Force22:~ Makes better use of carbon fiber to further improve stiffness and shed weight. The 11 speed X GlideR chainrings are optimized for use with the YAW Technology in the front derailleur, delivering seamless, flawless performance and 22 usable gears. Carbon arms with alloy spider. 808g (172.5 x 53/39T GXP).
• Carbon arms w/ alloy spider minimizes weight while maximizing stiffness.
• Hidden bolt pattern leverages the characteristics of carbon fiber while presenting a sleek appearance.
• X GlideR chainrings feature thicker construction, advanced shift timing pins and ramps, and are optimized for 11-speed YAW Front Derailleur.
• Weight: 808g (172.5mm x 53/39T GXP)