Chainrings

Chainrings built to match your drivetrain, your cranks, and your riding style. Every Helix chainring features our M4 narrow-wide tooth profile for superior chain retention, reduced noise, and extended wear life. Cross-compatible with Shimano®, SRAM®, and TRP® drivetrains including T-Type™. MTB, E-MTB, and gravel options from ultralight aluminum to durable steel. Learn more

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15 products

More about e*thirteen Chainrings

One tooth profile across every ring we make. The M4 narrow-wide design grips your chain with precision, reduces drivetrain noise, and outlasts conventional chainrings. Whether you're running Shimano®, SRAM®, TRP®, or mixing components across brands, Helix chainrings drop right in.

Worldwide Cyclery found the narrow-wide tooth profile "does a great job with chain retention. You can ride it with or without a chainguide all day." BikePerfect reported "400km and still spinning smoothly and showing minimal wear."

For mountain bikes, Helix Race delivers ultralight 7075 aluminum in direct mount, 8-bolt, and 3-bolt SRAM® crank-compatible options. Helix Race GR adds ASTM 5 strength for gravity applications. Helix Steel offers maximum wear life at a price that makes sense for trail bikes and winter rigs.

For E-MTB, e*spec chainrings handle motor-assisted torque with integrated dust covers and optimized profiles for electric drivetrains. Turbocharger systems add bashguard protection for technical riding.

For gravel, the Helix Race 107 BCD fits SRAM® XPLR and Quarq cranks, while the UL Chainring delivers the lightest 1x gravel ring available.

Direct mount, 8-bolt, 104 BCD, 107 BCD. Boost and Super Boost chainlines. 28T to 38T.