e*thirteen Helix R Chainring – 32t, 11/12-Speed, 3mm Offset, SRAM 3-Bolt DM Black. The e*thirteen Helix R 3-Bolt Direct Mount Chainrings, engineered for SRAM 3-Bolt crank systems, merge aesthetics with robust durability. e*thirteen’s narrow-wide tooth profile ensures compatibility with Shimano and SRAM 11- and 12-speed drivetrains. Manufactured from AL-7075-T6 aerospace-grade aluminum, the rings are CNC sculpted to provide low weights. Elevate your 3-Bolt Cranks, diversify drivetrains, reduce weight, and bring a new aesthetic to your bike with the Helix R 3-Bolt Chainrings.

• 3mm Offset 3-Bolt Direct Mount design for use with SRAM 3-bolt direct mount compatible cranks
• M4 narrow-wide tooth profile provides Shimano and SRAM 11/12-speed chain compatibility, excellent chain retention, and reduced wear
• Forged from premium 7075-T7 aluminum, then extensively CNC optimized for industry-leading weights and a unique high-end full CNC aesthetic
• Durable 7075-T6 construction for long wear-life, stiffness, and strength

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