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SRAM RED E1 1x AXS Aero Power Meter Spider
August 14, 2025Price range: $880.00 through $990.00
1x integrated power meter for SRAM RED 8-bolt crank arms – perfect for triathletes, time trials and cyclocross racers
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SRAM RED E1 1x AXS Aero Power Meter Spider
The SRAM RED E1 1x AXS Aero Power Meter Spider is the perfect 1x power meter for triathletes, time trials and cyclocross racers! The 1x direct mount aero chainring provides a gear range that is perfect for racing and flatter terrains. In addition, Quarq’s DZero power measurement technology is +/- 1.5% accurate and features active temperature compensation. This power meter also has dual ANT+ and Bluetooth SMART, left and right power balance and a full 2-year warranty.
Key Product Details
Compatibility:
This power meter is compatible with SRAM RED AXS 8-bolt DUB and GXP cranksets. See Compatibility tab for more information.
Power Measurement:
The SRAM power meter measures power at the spider and is therefore able to measure power from both legs.
Key Features:
Dual-leg power measurement, integrated 1-piece 1x chainrings, accurate to +/- 1.5%, CR2032 user-replaceable battery, left/right power balance, ANT+ and Bluetooth compatibility, auto-zero (automatic calibration). See Specs tab for more information.
Advice From Our Staff:
This power meter is SRAM’s premier 1x road power meter spider. The chainrings are fully integrated into the power meter which improves shifting while also making it lightweight and stiff. This power meter also measures power from both legs and provides left vs. right power balance. While the RED chainrings are made to last 50% longer than SRAM’s 11-speed chainrings, the chainrings cannot be replaced when worn, since the rings and power meter are one piece. Most customers can get many years of life out of the power meter before it needs to be replaced and SRAM offers a 50% off replacement when needed.
Options For This Power Meter
Chainrings: The power meter is available in the following chainring sizes:
- 44T | 46T | 48T | 50T | 52T | 54T | 56T
Other Versions to Consider
RED E1 Crankset: If you are looking for a complete power meter crankset, we recommend the SRAM RED E1 AXS Power Meter Crankset. This includes the power meter spider, chainrings and crank arms.
RED E1 2x Power Meter Spider: We also sell the SRAM RED E1 AXS Power Meter Spider which features 2x chainrings.
Compatibility
Cranks: This power meter is compatible with SRAM RED AXS 8-bolt DUB and GXP cranksets.
Bottom bracket: Compatible with SRAM DUB bottom brackets.
SRAM RED E1 1X AXS Specs
| Name | SRAM RED 1x AXS Power Meter |
| Bike Type | Road |
| Location of Power Measurement | Spider |
| Left or Both Legs Measured | Both |
| Independent Left/Right Measurement | Power Balance |
| Installation | More involved (60 min. estimated) |
| Communication Protocol | ANT+ and Bluetooth SMART |
| Claimed Accuracy | +/- 1.5% |
| Method of Cadence Measurement | Accelerometer |
| Chainline | 45 mm |
| Warranty | 2 year |
In the Box
- SRAM Power Meter and Chainrings
- Set of Torx T20 Bolts
Tools Needed for Installation
You will need the following tools for installation of this product. You can purchase many of these commonly used tools in our store.
Q&A
Have a question about this? Ask the staff.
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2x integrated power meter for SRAM RED 8-bolt crank arms
THIS PRODUCT IS FREQUENTLY BOUGHT WITH
-
SRAM RED E1 AXS Front Derailleur$495.00SRAM's most responsive, quick and precise front derailleur -
SRAM RED E1 DUB Crank Arms$440.00SRAM's top-of-the-line road crank arms -
SRAM RED E1 AXS Rear Derailleur$770.00SRAM's top-of-the-line rear road derailleur. Lighter and more efficient than ever -
SRAM RED E1 Flattop Bicycle ChainPrice range: $110.00 through $120.00SRAM RED Chain featuring Flattop and PowerLock technology
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