ethirteen Helix Race GR Direct Mount Chainring
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ethirteen Helix Race GR Direct Mount Chainring
ethirteen Helix Race GR Direct Mount Chainring Info
The Helix Race GR Direct Mount Chainring from ethirteen is purpose-built for gravity riding, where strength, chain security, and reliability matter more than anything else. Designed specifically to pair with Helix Race GR cranks, this chainring is optimized for downhill, bike park, and freeride use—delivering confident performance under the heaviest loads.
Forged from AL 7075-T6 aluminum and precision CNC finished, the GR chainring balances stiffness, durability, and weight for aggressive riding. When used with 83mm spindle Helix Race GR cranks, the -7mm offset produces a 56.5mm chainline that suits most modern long-travel frames. ethirteen’s proven Quick Connect Direct Mount interface ensures a creak-free, secure fit even under repeated high-impact abuse.
Helix Race GR Direct Mount Chainring Specs at a Glance
- Application: Gravity, downhill, bike park, and freeride.
- Material: Forged and CNC machined AL 7075-T6 aluminum.
- Mount Interface: Quick Connect Direct Mount spline.
- Tooth Profile: M4 narrow-wide for secure chain retention.
- Chainline: 56.5mm with 83mm spindle Helix Race GR cranks.
- Sizes: 34T and 36T.
- Colors: Black or Sterling Silver.
Design Benefits
- Gravity-Optimized Strength: Built to handle repeated high-impact loads and hard landings.
- Quiet, Secure Drivetrain: Narrow-wide tooth profile improves chain retention and reduces noise.
- Creak-Free Mounting: Quick Connect interface ensures consistent, secure engagement.
- Modern Drivetrain Compatibility: Works seamlessly with Shimano® and SRAM®, including T-type® systems.
Compatibility & Setup Notes
This chainring is intended for use with Helix Race GR cranks. Frames using 83mm spindle cranks require the GR chainring, while 73mm spindle cranksets must use a standard Helix chainring. The -7mm offset is designed to achieve proper chainline on long-travel gravity frames.
Final Take
The Helix Race GR Direct Mount Chainring is the right choice for riders pushing gravity bikes to their limits. With robust construction, secure mounting, and proven drivetrain compatibility, it delivers the confidence and durability required for downhill and bike park riding.
