Intense study of chain and chainring wear patterns led to the radical tooth profile that lasts longer, runs quieter and further improves chain retention. FEATURES: Cold forged Aluminum ring Eagle Technology tooth profile Approximate +10g in weight compared to the fully CNC version SPECS: Material: Aluminum Direct Mount Type: Direct Mount SRAM 3-Bolt Tooth Count: 32 Drivetrain Speeds: 12 , 11 , 10 Defined Color: Black Offset: 6