SRAM Eagle 70 T-Type Direct Mount Chainring - 34t 12-Speed 3-Bolt Direct Mount 3mm Offset Steel BLKSRAM Eagle 70 T Type Direct Mount Chainring 34t 12 Speed 3 Bolt Direct Mount 3mm Offset Steel Black. Rugged durability comes naturally to the stamped steel Eagle 70 T Type direct mount chainring. With bash guard compatibility and availability in three different tooth counts there is ample room to refine and customize your bikes look and feel. 3mm offset 3 bolt direct mount design (Mounting bolts included) Stamped steel construction offers durability