SRAM RED 1 AXS D1 Power Meter Crankset, 12-Speed, Carbon, DUB Spindle

Detailed Specifications

• Brand: SRAM

• Model: RED 1 AXS D1 Power Meter Crankset

• Crank Arm Length: Available in multiple sizes

• Drivetrain Speeds: 12-Speed

• Chainring: X-SYNC wide-tooth, narrow-tooth chain-retaining (available in multiple sizes)

• Number of Chainrings: Single

• Chainring BCD: 107 BCD

• Spindle Interface Type: SRAM DUB

• Chainline / Hub Compatibility:

  • 130 hubs

  • 135 / 142 mm Road Disc Hubs (< 415 mm chainstay)

• Pedal Spindle: 9/16"

• Intended Use: Road / Triathlon / Cyclocross / Time Trial

• Material: Natural Carbon crank arms

• Power Meter Technology: Quarq DZero, spider-based

• Accuracy: ± 1.5%, unaffected by climate conditions

• Connectivity: ANT+ and BLE

• Measures: Left / Right power balance

• BB Included: No

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Additional Features

• Single-ring drivetrain simplifies setup and reduces overall weight—perfect for road racing or triathlon.

• Quarq DZero power meter delivers reliable dual-leg measurement with spider-based integration.

• X-SYNC narrow-wide tooth profile ensures excellent chain control and retention under heavy loads.

• Aerodynamic design optimized for TT and triathlon frames for minimal drag.

• AXS integration allows wireless customization, firmware updates, and real-time monitoring.

• Lightweight carbon arms provide efficient power transfer and top-tier aesthetics.

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Important Usage Notes

• Requires SRAM DUB bottom bracket (sold separately).

• Designed specifically for SRAM RED eTap AXS electronic 12-speed drivetrains.

• Best suited for flatter terrain or disciplines needing tight, consistent gearing.

• Power meters returned opened or used may be subject to restocking fees.

• Professional installation recommended for proper torque and calibration.

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Riding Impressions

The SRAM RED 1 AXS D1 Power Meter Crankset delivers exceptional simplicity and performance. Its single-ring setup minimizes mechanical complexity while maximizing aerodynamic efficiency, making it a favorite among time-trialists, triathletes, and minimalist road riders. Quarq’s proven accuracy and dual-leg measurement ensure data you can trust, and the carbon construction keeps weight low without compromising stiffness. This crankset combines elite-level technology with precision engineering for clean, confident speed.

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Disclosure

Includes crank arms with integrated single-ring chainring and Quarq DZero power meter (available in multiple configurations).
Bottom bracket not included.
Retail packaged with full SRAM manufacturer warranty. Please retain your purchase invoice for warranty claims.