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power2max NGeco ROTOR ALDHU 24MM Gravel Power Meter Crankset

*Due to the wide variety of Chainrings and Crank Arms, Wheelworks will do special orders for power meters. 5-7 Business Days

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.)


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

Name NGeco ROTOR ALDHU Gravel Crankset
Bike Type Gravel
Location of Power Measurement Spider
Left or Both Legs Measured Both
Independent Left/Right Measurement Yes - Power Balance (available via upgrade)
Installation More involved (60 min. estimated)
Communication Protocol ANT+ and Bluetooth SMART
Claimed Accuracy +/- 2.0%
Weight 637 grams (power meter and cranks)
Battery Type CR2450
Battery Life 300-400 hours
Method of Cadence Measurement Accelerometer
Q Factor 147 mm
Warranty 2 years