E-Thirteen Helix R 107 BCD 4-Bolt Chainring - 42t 11/12-Speed 107BCD Black

Upgrade your Gravel and Road cycling performance with the e*thirteen Helix R 107 BCD 4-Bolt Chainring - 42t, engineered for 11/12-speed drivetrains and designed specifically for 4-bolt 107BCD cranks like SRAM Red or Force, including those equipped with power meters. This chainring offers a seamless blend of durability, precision, and efficient power transfer, helping you achieve higher top speeds and an expanded gear range when paired with e*thirteen’s cassettes. Crafted from premium 7075-T7 aluminum alloy, the chainring is CNC-machined to optimize stiffness-to-weight ratio, ensuring maximum responsiveness without adding unnecessary weight. Compatible with both SRAM and Shimano 11 and 12-speed systems, the chainline is perfectly set by your SRAM® crank assembly for flawless integration.

• Compatibility: Fits 4-bolt 107 BCD SRAM® cranks and Quarq® power meter cranks, providing versatile installation options.
• M4 Narrow-Wide Tooth Profile: Ensures exceptional chain retention and reduced wear by accommodating Shimano and SRAM 11/12-speed chains, including flattop chains, minimizing chain drops and enhancing drivetrain reliability.
• Precision Offset: Features a 4.8mm offset, with chainline determined by SRAM® crank assembly—45mm for standard width cranks and 47.5mm for wide cranks—ensuring optimal chain alignment.
• Premium Construction: Forged from high-grade 7075-T7 aluminum and extensively CNC optimized, this chainring delivers outstanding stiffness, durability, and a sleek technical aesthetic to complement your bike’s performance and style.
• Longevity and Strength: Built to withstand the rigors of intense riding, the durable 7075-T7 aluminum construction guarantees long wear life and strength for consistent performance ride after ride.