Chain Ring X-SYNC 2 Oval 32T Direct Mount 3mm Offset Boost Alum Eagle BlackEagle Technology creates the smoothest, quietest, longest lasting and most efficient drivetrains weve ever made. The radical new look and feel of our X SYNC 2 Eagle chainring is a direct result of SRAM drivetrain engineers studying the performance and wear characteristics of thousands of X SYNC chainrings. The longer, positive rake tooth shape has been designed to work perfectly with the new Eagle chain to increase chain retention and overall pedaling