Sigeyi AXO SL ROTOR ALDHU Road Power Meter Crankset

Sigeyi AXO SL ROTOR ALDHU Road Power Meter Crankset

The Sigeyi AXO SL ROTOR ALDHU Road Power Meter Crankset pairs the Sigeyi AXO SL spider with ROTOR’s ultralight ALDHU crank arms. This setup measures power from both legs, delivers ±1.0% accuracy while being reasonably affordable. You also get a rechargeable battery with up to 300 hours of ride time, auto-zero calibration and left-right balance metrics.

If your bike currently uses a Shimano road crankset, the 24 mm spindle version of this power meter drops in as a direct replacement. It fits your existing Shimano bottom bracket, and you can keep using your current Shimano chainrings. This makes installation straightforward and setup quick and hassle free.

Sigeyi AXO SL vs AXO Differences

This new AXO SL is the latest 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 incredibly 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: Engineers reduced the spider’s total volume by 35% and added a larger rear opening to improve T47 bottom bracket compatibility. 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 ALDHU Road Power Meter Crankset

• Low weight: The new AXO SL brings the weight of the power meter spider down to 80 grams, and when paired with the ROTOR ALDHU you get a high performance power meter crankset at a great price.
• 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: The 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 measures power at the spider and is therefore able to measure power from both legs.

Compatibility

This Sigeyi AXO SL ROTOR ALDHU Road Power Meter Crankset fits 24 MM or 30 MM bottom brackets and 110 BCD 4-bolt chainrings. This includes all Shimano 4-bolt road chainrings, including Shimano 12-speed chainrings. See the 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 stays highly accurate, it doesn’t provide true left-right power balance like dual-sided power meter pedals record.

Advice From Our Staff

This is one of our best-selling road power meter cranksets. It comes in 24 or 30 mm spindle sizes so it will fit any bike and you can run virtually any chainring size on it as well. The power meter measures power from both legs, is accurate and lightweight. It is also one of the most affordable dual-sided power meter cranksets you can buy.

Sigeyi Road Power Meter Crankset Comparison

Professional Assembly (Optional)

We are happy to professionally assemble your power meter crankset if you select this option when ordering. This ensures your crankset is correctly built and saves you time. Professional assembly includes:

• Mount the power meter to the cranks and tighten to factory specifications
• Apply multi-purpose bicycle grease where necessary
• Install chainrings on the power meter (if chainrings are ordered)

Please note – while we tighten everything to factory specs, it is still your responsibility to routinely check your power meter crankset to make sure all bolts and nuts remain securely fastened.