CRANKSET SRAM RED22 EXOGRAM GXP 172.5mmX(34-50) 11S.

Exogram technology uses a large, hollow cross section all the way to the spider, minimizing weight while maximizing stiffness. SRAM's stiffest crank ever. Hidden bolt pattern leverages the characteristics of carbon fiber while presenting a sleek appearance. Stiffer X Glide R chainrings feature thicker construction, advanced shift timing pins and ramps, which are optimized for shifting with the Yaw Front Derailleur. Bottom bracket not included. GXP interface.