SRAM RED E1 Powermeter Crankset

The SRAM RED E1 Powermeter Crankset represents the absolute top tier of SRAM’s drivetrain ecosystem, combining ultra-light carbon construction with a fully integrated, dual-sided power meter system. Built for elite riders and data-driven training, it delivers industry-leading accuracy, stiffness, and seamless AXS integration in a single, race-ready package.

Key Features & Benefits

Integrated Dual-Sided Power Measurement
The power meter is built directly into the chainring spider, measuring both left and right leg output independently for high-resolution performance data and balance tracking.

±1.5% Accuracy Across All Conditions
Engineered to maintain precision regardless of temperature or environmental changes, ensuring consistent and trustworthy training data ride after ride.

One-Piece Chainring + Power Meter Integration
Unlike modular systems, the RED E1 integrates the power meter directly into the chainring assembly, reducing weight and improving stiffness for more efficient power transfer under load.

Ultra-Light Hollow Carbon Crankarms (E1 Update)
Further refined carbon construction drops weight while increasing stiffness, delivering maximum responsiveness during sprints and sustained efforts.

X-Range 2x Gearing Optimization
Available in 46/33T, 48/35T, and 50/37T configurations, providing tight cadence steps and efficient gearing progression across wide cassette ranges.

DUB Spindle Interface
Improves durability, bearing life, and compatibility across bottom bracket standards while maintaining high stiffness and low system complexity.

Expanded Crank Length Options
Now offered in a broader range of crank lengths, allowing riders to fine-tune fit and biomechanics for optimal efficiency and comfort.

Technical Specifications

• Drivetrain Compatibility: SRAM AXS 12-speed road
• Power Meter Type: Spider-based, dual-sided measurement
• Accuracy: ±1.5%
• Chainring Options: 46/33T, 48/35T, 50/37T
• Crank Arm Lengths: 160mm to 175mm (expanded range available)
• Chainline: 45mm
• Spindle Interface: SRAM DUB
• Material: Hollow carbon crankarms, aluminum chainrings
• Weight: ~580g (varies by configuration)
• Battery Type: Coin cell (user-replaceable)
• Use Case: Road racing, endurance, performance training