Sigeyi AXO SL ROTOR Road Power Meter

Sigeyi AXO SL ROTOR Road Power Meter

The Sigeyi AXO ROTOR Road Power Meter is a spider-based power meter that is compatible with ALDHU and VEGAST cranksets. The Sigeyi AXO SL improves upon the 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, are accurate to +/- 1.0% and are very lightweight. Moreover, it can easily bolt up to your existing 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 vs AXO SL 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 ROTOR 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 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 all 24 mm and 30 mm ROTOR ALDHU and VEGAST cranksets. Regarding chainrings, 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 ROTOR ALDHU or VEGAST road cranksets. The new AXO SL is among the lightest power meter spiders 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 attaches 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.