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Sigeyi AXO SL SRAM Road Power Meter
April 20, 2026$470.00
Sigeyi’s accurate, affordable and dual-sided power meter for your SRAM 3-bolt road crankset
Please note the new SL is only available in a 110 4-Bolt BCD
Only 1 left in stock – Ships today! (Monday)
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Sigeyi AXO SL SRAM Road Power Meter
The Sigeyi AXO SL SRAM Road Power Meter is a spider-based power meter that is compatible with SRAM 3-bolt road cranksets. The Sigeyi AXO SL improves upon the previous version AXO by reducing weight to well below 100 grams! In addition, the AXO SL improves compatibility, is stiffer than its predecessor and can now deliver pedaling smoothness data.
All Sigeyi power meters measure power from both legs and are accurate to +/- 1.0%. Moreover, they easily bolt up to your existing SRAM crankset which means there is no need to buy new cranks or replace your bottom bracket.
This Sigeyi power meter also features a rechargeable battery with 300 hours of ride time, auto-zero functionality (so your data is always accurate), left and right leg power balance and a 2-year manufacturers warranty. Of course, you also get Bluetooth Smart. This allows you to use the power meter with your favorite indoor training program or app.
Sigeyi AXO SL vs AXO Differences
The AXO SL is the latest version of the AXO power meter from Sigeyi.
- New Pedal Smoothness Feature: The SL can provide pedal smoothness metrics, helping riders even out their pedal stroke.
- Reduced Weight: This new version is astonishingly lightweight, dropping the mass of the power meter spider from 105 grams to 80 grams.
- Improved Stiffness: Despite the reduced weight, the AXO SL is 8% stiffer laterally and 10% stiffer torsionally. This means power transfer to the bike is improved.
- Reduced Volume: The total volume of the spider has been reduced by 35%, with a larger rear opening to improve compatibility with T47 bottom brackets. In addition, the front surface is now flat, allowing for use of covers to complete an OEM look.
The features that made the AXO such a great power meter spider have been kept, such as +/- 1.0% accuracy, auto-zero calibration, active temperature compensation and more.
Product Details
Key Features of the Sigeyi AXO SL SRAM Power Meter
- Incredibly Lightweight: The new AXO SL brings the weight of the power meter spider down to an astonishing 80 grams.
- Dual-Sided Power Measurement: It measures power data from both legs and the AXO SL can even show power balance metrics between each individual leg. It can also show pedaling smoothness metrics.
- Highly Accurate: Sigeyi is accurate to +/- 1.0%, giving trustworthy training data.
- Long Battery Life: A rechargeable battery gives 300 hours of battery life and a magnetic charging cable keeps things sealed and simple.
- Smart Details: Auto-zero (automatic calibration), active temperature compensation, ANT+ and Bluetooth which makes using the Sigeyi power meter effortless.
Power Measurement
The Sigeyi power meter is a spider-based power meter and is therefore able to measure power from both legs.
Compatibility
This Sigeyi power meter is compatible with SRAM 3-bolt cranksets. This includes the SRAM S-900, Force 1, Force 22, Rival 1, Rival 22 and CX1. It fits 110 BCD 4-bolt chainrings. See Compatibility tab for more information.
Considerations
Like all spider-based power meters with this functionality, the AXO SL provides estimated power balance data. While this estimation is highly accurate, it’s not true left-right power balance like the data recorded by dual-sided power meter pedals.
Advice From Our Staff:
The Sigeyi AXO SL Power Meters are excellent options for adding power measurement to SRAM 3-Bolt road cranksets. The new AXO SL is among the lightest power meter spider available and builds on the strong feature set of the original AXO. It measures power from both legs, offering accurate, reliable and affordable performance. Since it bolts directly onto your existing crankset, there’s no need to buy new cranks or change bottom brackets. For those seeking maximum performance in a light package, the AXO SL is a compelling upgrade.
Other Versions to Consider
Sigeyi SRAM Road 8-Bolt: We also have the Sigeyi AXO SL SRAM 8-Bolt Road/Gravel Power Meter which fits SRAM 8-bolt road cranksets. Please contact us if you are not sure which version you need.
Compatibility
Cranksets: The Sigeyi SRAM Road Power Meter is compatible with SRAM S-900, Force 1, Force 22, Rival 1, Rival 22 and CX1 cranks with a 3-bolt interface. This power meter does NOT fit Cane Creek eeWing cranks.
Chainrings: This power meter is compatible with 110 BCD 4-bolt chainrings, including Shimano 12-speed chainrings. In many cases, you can use your existing chainrings assuming they use the same configuration as the power meter you order.
- Note - Some SRAM cranksets come equipped with direct mount chainrings. In this case, you will need to purchase new chainrings as direct mount chainrings won't work with a power meter spider. We have several chainrings to choose from on our Chainrings page.
Sigeyi SRAM Road 3-Bolt Specs
| Name | Sigeyi SRAM Road Power Meter |
| Bike Type | Road |
| Location of Power Measurement | Spider |
| Left or Both Legs Measured | Both |
| Independent Left/Right Measurement | Yes - Power Balance |
| Pedal Smoothness | Yes |
| Installation | More involved (60 min. estimated) |
| Communication Protocol | ANT+ and Bluetooth SMART |
| Claimed Accuracy | +/- 1.0% |
| Weight | 80 grams |
| Battery Type | Rechargeable |
| Battery Life | 300 hours |
| Method of Cadence Measurement | Accelerometer |
| Warranty | 2 years |
In the Box
- Sigeyi power meter
- Charging cable
- User's manual
- Sigeyi Decal (color is randomly selected by Sigeyi. Application of decal optional)
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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R. Thrifty (verified owner) –
Fast shipping, great price to value at time of purchase, and accuracy appears consistent with a 2020 NGeco, though no consistent method to compare. Looks better than the stock SRAM spider and seems quite weather resilient (great for CX bike) with a great app for firmware/calibration.
Power Meter City –
Thank you for your detailed feedback! We’re glad the shipping was fast and that you’re happy with the value, performance, and durability of your new power meter. We appreciate you highlighting the app and weather resilience—perfect for CX riding!
David M. (verified owner) –
Fantastic product. I was struggling to find the right power meter for my SRAM Force 22 cranks. I couldn’t go with a crank replacement due to the slightly odd size (177.5mm). Turns out this is a much better choice altogether. Love the spider integration and it’s working perfectly. Big thanks to David for guiding me through what I needed and answering questions on this brand. Looking forward to doing the same on my MTB next.
Power Meter City –
We’re glad this power meter is working well for you, David! We appreciate the review and are happy to help if you need anything else. Happy riding!
donaldmoden (verified owner) –
I have one Pioneer and two Sigeyi power meters. They all read the same across three different types of bikes. I really like how simple it was to add the Sigeyi to my current crank setup. As well as calibration & firmware via the app. Hands down an awesome deal!
Power Meter City –
Wow, thank you, Donald for taking the time to share your positive experience with our new Sigeyi AXO SRAM power meter! We’re delighted that it’s meeting your expectations. Your review is truly appreciated. Ride safe!
chris welch (verified owner) –
Incredible deal. Fits my 38t 1x and the power readings are right on target when compared to my Stages crank arms (on other bikes). Well over 200 miles without a hiccup.
Power Meter City –
You’re right! Thank you for this review, Chris! (Our very first one for Sigeyi) We hope you will continue to enjoy them. We are here if there is anything else we can help you with!