Product Description

The SRAM RED AXS E1 Power Meter Crankset combines SRAM's latest lightweight RED carbon crankarms with an integrated Quarq spider-based power meter and X-Range 2x chainrings.

This multi-variation listing offers 46/33T and 48/35T gearing in 172.5mm and 175mm crank lengths. The power meter is fully integrated into the chainring assembly for reduced weight and delivers claimed accuracy within ±1.5%, along with left/right power balance.

The E1 generation features SRAM's updated carbon crankarm construction and is 29 grams lighter than the previous generation. All variations use the SRAM Road DUB spindle, 45mm chainline, and a consistent 13-tooth front chainring difference for fast, precise front shifting.

Available Variations

Key Features

• SRAM RED AXS E1 generation
• Integrated Quarq power meter
• Spider-based power measurement
• Measures total power and left/right power balance
• Claimed ±1.5% accuracy
• Updated lightweight carbon crankarms
• Integrated aluminum 2x chainring/power meter assembly
• SRAM X-Range gearing
• Consistent 13-tooth front shift
• SRAM Road DUB spindle
• 8-bolt direct-mount interface
• 45mm chainline
• AXS power-meter connectivity
• Available in 46/33T or 48/35T gearing

Specifications

• Brand: SRAM
• Series: RED AXS
• Generation: E1
• Model ID: FC-RED-P-E1
• Product Type: Power Meter Crankset
• Drivetrain: 2x12-Speed
• Available Crank Lengths: 172.5mm / 175mm
• Available Chainrings: 46/33T / 48/35T
• Front Tooth Difference: 13T
• Crankarm Material: Carbon
• Chainring Material: Aluminum
• Spindle Interface: SRAM DUB
• Bottom Bracket Compatibility: SRAM Road DUB
• Chainline: 45mm
• Chainring Offset: 0mm
• Chainring Mount Interface: 8-Bolt
• Power Meter Type: Spider
• Power Accuracy: ±1.5%
• Power Balance: Left / Right
• Chain Compatibility: SRAM Road Flattop
• Bottom Bracket Included: No
• Reference Weight: 580g, based on SRAM's 172.5mm 48/35T configuration with battery

Compatibility

Designed for compatible SRAM AXS 2x road drivetrains using SRAM Road DUB bottom brackets and Road Flattop chains.

SRAM lists the E1 RED power-meter crankset for Road Flattop D1/E1 chain technology, allowing it to work within compatible SRAM AXS road drivetrain combinations across generations when the surrounding derailleur, cassette, and chain configuration is compatible.

Important Power Meter Note

The power meter is integrated into the chainring assembly. The chainrings and power meter function as an integrated unit rather than as separate conventional chainrings mounted to a reusable power-meter spider.

Included

• SRAM RED AXS E1 carbon crankset
• Integrated Quarq power meter
• Integrated 2x chainring assembly in selected gearing

Not Included

• DUB bottom bracket

Condition

• New
• Non-retail packaged