SRAM X-Sync 2 Eagle Direct Mount Chainring 34T Boost 3mm Offset Gold LogoSRAM X Sync 2 Eagle Direct Mount Chainring 34T Boost 3mm Offset with Gold Logo. Intense study of chain and chainring wear patterns led to the radical tooth profile that lasts longer runs quieter and further improves chain retention. Fully CNC Aluminum ring construction Eagle technology provides an expanded optimum gear range for 1x drivetrains X SYNC 2 chainring design increases chain retention wear life and reduces friction and noise Designed to be