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SRAMRed AXS Power Meter Spider


Item # SRM00H4

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  • Black, 107BCD ($449.00)
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Item # SRM00H4

Why We Like The Red AXS Power Meter Spider

With the Red AXS Power Meter Spider from SRAM, you can easily upgrade your SRAM AXS crankset into a power meter. By simply unbolting the eight T20 Torx bolts that hold your current spider to the drive side crankarm and installing this unit, you'll start to receive important ride metrics like cadence and wattage. Its 107mm bolt circle diameter works with both 1x and 2x setups offering the maximum in versatility down the road.

Like the rest of its 12-speed electronic road and mountain groups, the Power Meter Spider is AXS enabled, SRAM's newest electronic integration platform that connects the components to an easy to use app. It allows you to monitor battery status and perform firmware upgrades. Information is sent to your smartphone, tablet, or head unit via Bluetooth Low Energy or ANT+ connection and the power readings are accurate to within +/-1.5% and aren’t affected by changing climate conditions during your ride. Lastly, the spider measures the power balance between your left and right legs separately, letting you maximize training and dialing in your position.

  • SRAM's AXS Power Meter Spider for upgrading a SRAM AXS crankset to a power meter
  • AXS enabled for easy monitoring and firmware upgrades
  • Bluetooth Low Energy and ANT+ compatible
  • Power readings are accurate to within +/-1.5%
  • Reading aren’t affected by changing climate conditions during a ride
  • Power balance measures left and right legs separately

Tech Specs
Bolt Circle Diameter107mm
Rings1x, 2x
Compatible ComponentsSRAM AXS 12-speed
Manufacturer Warranty2 years

Actual Weight

Black, 107BCD

Actual weights are measured in-house by the Competitive Cyclist team.

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What do you think about this product?


>Rating: 4

Easy installation, works great so far

I've used it several times

Purchased as an add-on to new Pivot gravel bike (once the price dropped from $600 to $450). Installation very easy as long as you have T20 torx bit to change out the existing spider. You also need 8 mm hex and torque wrench to remove the AXS crank assembly. Install instructions in the box are non existent, but plenty of videos on you-tube. This powermeter weighs 100 g more than the standard Force AXS spider. Connecting to both AXS app and my Garmin 830 was very easy. Nice that the app is available for any firmware updates. I have not done any accuracy comparison to other power meter such as vector pedals or trainer, but directionally the readings seems good. There is estimated left/right balance if you see value there. My prior experience with crank based meters is they are simple, set and forget, and with the new price the AXS version seems like good value. 4 stars because of need to find my own instruction videos, and would have liked smaller weight penalty which may be unrealistic at 100 g!


Is this compatible with the AXS 46/33 crank?


Chainring options to run this spider with the Red AXS group? Tks!


What is the weight? (just the power meter)