Sram Road ThreadMount E1

Threaded Rigidity. Pro-Tier Speed.

The Sram RED Road Thread Mount Chainring is designed to thread directly onto the Sram RED E1 Power Meter Spider. This unified construction ensures that there is zero flex under high-torque sprinting loads, delivering instantaneous power transfer and unparalleled chain retention. Whether you are building a dedicated 1x aero road machine or a world-class gravel racer, these rings provide the professional "factory" look and performance that define the E1 generation.

Why the RED E1 Thread Mount is a Masterpiece:

• Revolutionary Threaded Design: By threading the ring directly to the power spider, SramM has achieved a level of integration that is lighter and more structurally sound than traditional 4bolt or 5bolt patterns.

• Optimized 1x Gearing: Available in a wide range of sizes (38T–46T), these rings are specifically designed for the X-Range™ and XPLR systems, ensuring you have the perfect gear for high-speed road pacelines or technical off-road climbs.

• X-SYNC™ Narrow-Wide Technology: The tall, square tooth profile engages the chain earlier and provides maximum mechanical retention, completely eliminating the need for a chain guide even on the roughest terrain.

• Enhanced Aerodynamics: The smooth, integrated interface reduces air turbulence around the crankset. A marginal gain that adds up during long solo efforts or breakaways.

• Laser-Etched Finish: Features a premium, durable finish with laser-etched graphics that resist wear from the chain and the elements, keeping your drivetrain looking pristine through a full season of racing.

• Flattop Chain Compatibility: Engineered specifically to work with Sram’s 12Speed Flattop chains, ensuring whisper-quiet operation and the fastest, most reliable power delivery possible.

Technical Specifications:

• Mounting Type: Sram Thread Mount (Proprietary E1)

• Drivetrain Speed: 12Speed (AXS)

• Tooth Profile: X-SYNC™ (Narrow-Wide)

• Compatibility: Sram RED E1 Power Meter Spiders / Cranksets

• Material: High-Strength Aluminum Alloy

The Alegro Perspective: In the shop, we call this the "Cleanest Rig on the Road." If you've ever struggled with creaky chainring bolts or the weight of a heavy spider, the Thread Mount system is a revelation. It creates a sleek, futuristic aesthetic that perfectly complements high-end carbon frames like the Scott Addict RC. Pro tip: Because there are no bolts to work loose, this is one of the most reliable and maintenance-free 1x setups we've ever seen.

Integrated Stiffness. Minimalist Weight. Own the Road with Sram RED E1.