Rugged durability comes naturally to the XX Eagle T-Type direct mount chainring. Finished with a distinct, dual-spoke design your shifting will never be compromised. 3mm offset Light weight and incredibly durable aluminum chainring 8-bolt direct mount design (Mounting bolts included) Compatible with SRAM T-Type chains Round or Oval: Round Material: Aluminum Color: Black Chainline/Hub Compatibility: 135/142 MTB Hubs , 141/148 Boost Hubs Direct Mount Type: Direct Mount SRAM Tooth Count: 30 Ring Position/Type: Chain Retaining Single Ring Drivetrain Speeds: 12 Offset: 3mm