- 52mm chainline for 148mm rear spacing - Stainless steel teeth provide a 500% increase in wear durability over aluminum. - Carbon fiber construction reduces ring weight while improving stiffness and power transfer - Direct Mount (DM) fits Race Face Cinch system splined cranks - Narrow-wide teeth prevent chain drop, updated tooth profile runs quieter - Installs with a common Park Tool BBT-22 - Shimano 12sp (SHI12) and SRAM 11-12 / Shimano 11 (NW) versions
