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power2max NGeco ROTOR ALDHU 24MM Gravel Power Meter Crankset

Josh Matthew March 5, 2021
5.00 out of 5 based on 2 customer ratings
(2 customer reviews)


The go-to gravel power meter for bikes with a Shimano GRX crankset!

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power2max NGeco ROTOR ALDHU 24MM Gravel Power Meter Crankset

The power2max NGeco ROTOR ALDHU 24MM Gravel Power Meter Crankset is the go-to gravel power meter for bikes with a Shimano GRX crankset. Using the same 24MM spindle as your GRX crankset, this power meter will fit your current bottom bracket without any changes. Even better, the power meter gives you a narrow road Q factor vs. the slightly wider Q factor inherent in GRX cranks and allows you to run a 1x or 2x chainring set-up.

Like all power2max power meters, the p2m ROTOR ALDHU Gravel crankset features dual leg power measurement, ANT+/Bluetooth SMART compatibility and left/right power balance. In addition, the NGeco is accurate to +/- 2.0% in all environmental conditions and is easy to use with features such as auto-zero and accelerometer-based cadence measurement.



Dual-Leg Power Measurement

The NGeco power meter measures power at the crank spider. This means it measures both left and right leg power.

Accurate to +/- 2.0%

The power2max is always consistent and accurate, regardless of the environmental conditions.

Long Battery Life

The power meter gets 300-400 hours of run time off of a single CR2450, user-replaceable battery.

Left/Right Power Balance

In addition to measuring both legs, the NGeco can also provide left/right power balance with a system upgrade.


Featuring both ANT+ and Bluetooth SMART, the power meter can be used with virtually any bike computer or smart phone.


With the auto-zero feature, you never have to worry about manually calibrating the unit. Just get on and go!


Chainrings: You can order this power meter in a 1X or 2X chainring configuration.

2x chainring sizes are: 46/30 | 48/31

1x chainring sizes are: 38 | 40 | 42 | 44 | 46

Crank arms: The ROTOR ALDHU 24 mm crank arms come in the following crank arm lengths:

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

(Please note, we also sell this power meter with ROTOR ALDHU 30 mm crank arms if you prefer that version.)

Please note – this power meter ships with a Black decal. Please let us know if you would like us to include a different color instead (Red, Blue, White, Green).


In the Box

  • power2max power meter
  • ROTOR ALDHU crank arms
  • power2max gravel chainrings
  • CR2450 battery
  • User’s manual


power2max NGeco ROTOR ALDHU 24MM Gravel Crankset Specs

NameNGeco ROTOR ALDHU Gravel Crankset
Bike TypeGravel
Location of Power MeasurementSpider
Left or Both Legs MeasuredBoth
Independent Left/Right MeasurementYes - Power Balance (available via upgrade)
InstallationMore involved (60 min. estimated)
Communication ProtocolANT+ and Bluetooth SMART
Claimed Accuracy+/- 2.0%
Weight637 grams (power meter and cranks)
Battery TypeCR2450
Battery Life300-400 hours
Method of Cadence MeasurementAccelerometer
Q Factor147 mm
Warranty2 years


2 reviews for power2max NGeco ROTOR ALDHU 24MM Gravel Power Meter Crankset

  1. Avatar

    John Hintz (verified owner)

    This is my first power meter and I couldn’t be happier with it, or with the service/help I got from Power Meter City. I installed it myself (and I am by no means a bike mechanic), using videos on removing the Shimano crank and another video from Power2max on installing the Rotor Aldhu power meter crank. It was pretty darn easy. It shifts smooth as butter, just like the GRX crank it replaced. So far, so good! Thanks, Power Meter City!

    • Power Meter City

      Power Meter City

      Hi John. Welcome to power! Good choice on your first power meter! Good luck on your rides and we hope you will enjoy your power2max NGeco ROTOR ALDHU 24MM Gravel Power Meter Crankset! We are here if there is anything else we can do!

  2. Avatar

    Mike (verified owner)

    Fantastic experience from start to finish!
    Pros: replies within minutes, solves your problems right away, cheerful attitude.
    Cons: I’m gonna have to spend more money here in the future!
    Thank you Josh and Niel!

    • Power Meter City

      Power Meter City

      Hi Mike. Thanks for this kind review and for being a great customer. Please let us know if there is anything else we can do! Ride safe!

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