Sigeyi AXO ROTOR ALDHU Carbon Road Power Meter Crankset

Sigeyi AXO ROTOR ALDHU Carbon Road Power Meter Crankset
The Sigeyi AXO ROTOR ALDHU Carbon Road Power Meter Crankset combines the Sigeyi spider with an ultra-light ALDHU Carbon crankset. This Sigeyi crankset measures power from both legs, is accurate to +/- 1.0% and is lightweight. The power meter also features a rechargeable battery with 300 hours of ride time, auto-zero functionality, and left and right leg power balance.
In addition, this power meter crankset uses ROTOR’s first ever carbon crank arms! The ALDHU Carbon Crankset is very light, weighing 100 grams less than the ALDHU aluminum model. In addition, vertical and horizontal stiffness had been increased by 11% and 36%, respectively. Key Product Details
Compatibility:
This power meter fits 30 MM bottom brackets and 110 BCD 5-bolt or 110 BCD 4-bolt chainrings based on the version ordered.
Power Measurement:
The Sigeyi power meter measures power at the spider and is therefore able to measure power from both legs.
Key Features:
Dual-leg power measurement, lightweight carbon fiber crankset, accurate to +/- 1.0%, 300 hours of battery life, rechargeable battery, very lightweight, left/right power balance, ANT+ and Bluetooth compatibility, auto-zero (automatic calibration).
Advice From Our Staff:
This is a more expensive power meter with the carbon crank arms, however at $790 you get dual-sided power and very lightweight and stiff carbon fiber crank arms. When compared to similar power meter cranksets, it’s a pretty nice value. If it’s in your budget, we highly recommend it. Options For This Power Meter BCD:
This power meter is available in the following BCDs in order to fit your choice of chainring sizes:

110 5-Bolt | 110 4-Bolt

Crank arms:
The ROTOR ALHDU Carbon arms use a 30 mm spindle and are available in the following sizes:

155 mm | 165 mm | 170 mm | 172.5 mm | 175 mm

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. Compatibility Chainrings:
The power fits 110 BCD 5-bolt or 110 BCD 4-bolt chainrings based on the version ordered. In many cases, you can use your existing chainrings assuming they use the same configuration as the power meter you order.
The 110 BCD 4-Bolt version is compatible with all Shimano 4-bolt chainrings, including Shimano 12-speed chainrings. Bottom Bracket:
This power meter fits 24 MM or 30 MM bottom brackets, depending on the version ordered. If you are ordering the same size as you currently have on your bike, you should be able to re-use your existing bottom bracket. However, if you are changing spindle sizes, you will need to replace your bottom bracket. In the Box

Sigeyi AXO power meter

ROTOR ALDHU Carbon crank arms and spindle

Charging cable

User's manual

Decals: Black, Red, Green, Silver, Blue

Specs Name Sigeyi ROTOR ALDHU Crankset Bike Type Road Location of Power Measurement Spider Left or Both Legs Measured Both Independent Left/Right Measurement Yes - Power Balance Installation More involved (60 min. estimated) Crank Arm Material Carbon Fiber Communication Protocol ANT+ and Bluetooth SMART Claimed Accuracy +/- 1.0% Active Temperature Compensation Yes Weight 456 grams Battery Type Rechargeable Battery Life 300 hours Method of Cadence Measurement Accelerometer BCD 110 5-bolt or 110 4-bolt Spindle Size 30 mm Q Factor 147.5 mm Warranty 2 years Why Buy from Power Meter City 1. We ship fast! All orders ship on the same day your order is placed! 2. Free shipping on all orders in the U.S. 3. We are an authorized Sigeyi dealer and this product comes with a full warranty. 4. Expert advice and customer service in case you need any help. About our Company At Power Meter City, we focus on power meters and related accessories and components. Our focus on these products means we can offer you the best possible selection, advice and service. We have been in business since 2016 and are based in southern California. We are an authorized dealer of every product we sell.