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power2max NGeco ROTOR p2m Edition 24MM Gravel Power Meter Crankset

Josh Matthew July 18, 2024
5.00 out of 5 based on 3 customer ratings
(3 customer reviews)


The best-selling ROTOR ALDHU crank with more budget friendly p2m Edition crank arms

Clear selection

power2max NGeco ROTOR p2m Edition 24MM Gravel Power Meter Crankset

The power2max NGeco ROTOR p2m Edition 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 p2m Edition 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.


Key Product Details


This power meter is a direct replacement for your Shimano GRX crankset. It uses a 24 mm spindle and fits Shimano 24 mm bottom brackets. It comes with power2max gravel chainrings and features a GRX 47 mm chainline. The power meter gives you a narrow road Q factor vs. the slightly wider Q factor inherent in GRX cranks. See Compatibility tab for more information.

Power Measurement:

The power2max power meter measures power at the spider and is therefore able to measure power from both legs.

ROTOR p2m Edition vs. ROTOR ALDHU

We offer this power meter with both ROTOR power2max Edition (what you are viewing now) and ROTOR ALDHU crank arms. These crank arms work and fit the same, however power2max Edition is a slightly more budget friendly version of the ROTOR ALDHU version. The slightly more expensive ALDHU version has a nicer finish and they are about 40 grams lighter.

Key Features:

Dual-leg power measurement, accurate to +/- 2.0%, 300-400 hours of battery life, CR2450 user-replaceable battery, left/right power balance with system upgrade, ANT+ and Bluetooth compatibility, auto-zero (automatic calibration). See Specs tab for more information.

Advice From Our Staff:

We highly recommend power2max power meters and use them on many of our own bikes. They measure power from both legs, are accurate and very reliable. We believe the price also represents a good value for what you get.


Options For This Power Meter

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

  • 1x chainring sizes are: 38 | 40 | 42 | 44 | 46
  • 2x chainring sizes are: 46/30 | 48/31

Crank arms: The ROTOR power2max Edition 24 mm crank arms come in the following crank arm lengths:

  • 165 mm | 170 mm | 172.5 mm | 175 mm

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).


Other Versions to Consider

Upgraded ROTOR ALDHU Crank Arm Version: We also sell the power2max NGeco ROTOR ALDHU 24MM Gravel Power Meter Crankset which comes with nicer, but slightly more expensive, ROTOR ALDHU crank arms. The finish on the ALDHU arms is nicer and they are about 40 grams lighter.


Professional Assembly (Optional) power2max Build Checklist

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)
  • Apply power2max decal

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.



  • 1x chainrings: Compatible with 11- and 12-speed drivetrains (not compatible with SRAM 12-speed chains).
  • 2x chainrings: Compatible with 9-, 10- and 11-speed drivetrains as well as with 12-speed Shimano, SRAM and KMC chains.

Bottom Bracket: This power meter fits 24 mm bottom brackets. If you currently have a crankset that uses a 24 mm spindle, you will be able to re-use your existing bottom bracket. However, if you are changing spindle sizes, you will need to replace your bottom bracket.

power2max NGeco ROTOR p2m EDITION 24MM Gravel Crankset Specs

NameNGeco 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)
Crank Arm MaterialAluminum
Communication ProtocolANT+ and Bluetooth SMART
Claimed Accuracy+/- 2.0%
Active Temperature CompensationNo (however features Auto Zero)
Weight657 grams (power meter and cranks)
Battery TypeCR2450
Battery Life300-400 hours
Method of Cadence MeasurementAccelerometer
BCD104 4-bolt
Spindle Size24 mm
Q Factor147 mm
Warranty2 years

*Power Balance Upgrade

The power2max NGeco measures power from both legs right out of the box. However, with power balance, you can see how much power each leg is generating individually. If this information is important to you, you can choose to upgrade the power meter at any time. (Please note, you can also purchase the NG version of the power2max which comes with this feature unlocked, along with a rechargeable battery and a longer 5-year warranty.)

You can upgrade your NGeco using the power2max app once you receive the power meter. The cost to upgrade is 50 euros.

In the Box

  • power2max power meter
  • ROTOR power2max Edition crank arms and spindle
  • power2max gravel chainrings
  • CR2450 battery
  • User's manual

Tools Needed for Installation

You will need the following tools for installation of this product. You can purchase many of these commonly used tools in our store.

  • 10 mm Allen key

Common Questions and Answers

Question: Can I use this power2max Gravel power meter on a Shimano road drivetrain?

  • Great question! This power2max Gravel power meter features a GRX 47 mm chainline. This is wider than the 44 mm chainlines used on Shimano road drivetrains such as 105, Ultegra and DURA-ACE. However, the chainline on this gravel crankset can be converted to the narrower 44 mm road chainline by use of a power2max MTB Adapter Plate. The adapter plate is placed between the power meter and the gravel chainring, which moves the chainring closer to the bike and gives you a Shimano road chainline.

Question: What's the difference between this power meter and the power2max ROTOR ALDHU Power Meter for GRX Chainrings?

  • These power meter cranksets are very similar. They are both direct replacements for a Shimano GRX crankset. They feature GRX chainlines, use 24 mm spindles and fit Shimano 24 mm bottom brackets. However, there are some key differences too. Please see this article for more information: power2max Gravel Power Meter Comparison.

Question: How do I determine what length my current cranks are so I can make sure I get the same size?

  • Your crank arm length should be printed or stamped on the inside of the left crank arm, usually near the pedal end.

End of crank arm showing crank arm length

3 reviews for power2max NGeco ROTOR p2m Edition 24MM Gravel Power Meter Crankset
  1. Adonisy92 (verified owner)

    Very good service and fast shipping, after testing, this power meter is very accurate and the balance is pretty good, but be aware that 48/31 is a better choice

    • Power Meter City

      Thank you for this amazing review! We hope you will enjoy your new power2max NGeco ROTOR p2m Edition 24MM Gravel Power Meter Crankset, and if there is anything else we can do, please let us know! Ride safe!

  2. TonyP

    This was the perfect set up to replace my GRX crankset on my new Aspero. This gravel specific powermeter has the correct chainring spacing for the GRX specific front der. Also the guys at PowerMeterCity were really patient and helpful.

    • Power Meter City

      Thanks Tony! Totally agree with this – these crankset rocks! We hope you will continue to enjoy them, and if there is anything else we can help you with, please don’t be hesitant to let us know! Ride safe!

  3. Mike D (verified owner)

    This was just want I needed for my Lynskey GR300 build with GRX Di2. The install was easy, the power meter works perfectly, and Power Meter City service was second to none. I didn’t have the chainstay clearance to go with a left side crank PM as I’ve used on prior bikes so this was a great alternative.

    • Power Meter City

      Awesome! Thanks for this Mike! Agreed! We hope you will enjoy them – good luck on your rides! We are here if there is anything else we can do.

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