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ROTOR INspider ALDHU Road Power Meter Crankset

Josh Matthew May 2, 2022


ROTOR’s newest, spider-based power meter with equal parts looks and performance!


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ROTOR INspider ALDHU Road Power Meter Crankset

The ROTOR INspider ALDHU Road Power Meter Crankset is the first of its kind – a spider-based power meter that can be used on virtually any bike! It is compatible with any of ROTOR’s newer direct mount cranksets and you can use it on your road, CX, gravel or track bike.

In addition, ROTOR cranks come in all shapes and sizes. You can select 24 and 30 mm spindles and crank arms from 150 to 175 mm. This allows to you run the crankset that fits both your bike and your style. You can even set up the INspider in a 1x or 2x chainring configuration using any ROTOR 110 BCD 4-bolt chainring.

The ROTOR INspider records data via four sets of opposing gauges. This results in a high degree of accuracy (+/- 1.0%). It also means the power meter can measure left and right leg power balance. The INspider features ANT+ and Bluetooth SMART and has a USB-rechargeable battery with 200-hour battery life.



Crank Arm Length: 150 mm | 155 mm | 160 mm | 165 mm | 170 mm | 172.5 mm | 175 mm

Chainring Size: 53/39 | 52/36 | 50/34

Chainring Shape: Round | Oval

Includes ROTOR Aero Crown as pictured. Please contact if you would like to order without the crown, a savings of $55.


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


Chainrings: This power meter is compatible with ROTOR 110 BCD 4-bolt asymmetric chainrings which can be purchased on this page along with the power meter and cranks.

Bottom Bracket: This power meter uses a 30 mm spindle and must be used with a 30 mm bottom bracket.

Note 1 - If you would like this power meter crankset with a ROTOR ALDHU 24 mm spindle, we are happy to arrange that (price is the same). In addition, you can also get this power meter with the slightly lower priced VEGAST 30 or VEGAST 24 cranks. Please contact us for availability.

Note 2 - This power meter can also be ordered with SRAM AXS chainrings (same price). Please contact us for availability.

Note 3 - The INspider does not fit Trek bikes that have a T47 bottom bracket.

ROTOR INspider ALDHU Road Crankset Specs

NameROTOR INspider Crankset
Bike TypeRoad, CX, Gravel, Track
Location of Power MeasurementSpider
Left or Both Legs MeasuredBoth
Independent Left/Right MeasurementPower Balance
InstallationMore involved (60 min. estimated)
Communication ProtocolANT+ and Bluetooth SMART
Claimed Accuracy+/- 1.0%
Battery TypeRechargeable Li-ion
Battery Life200 hours
Method of Cadence MeasurementAccelerometer
Q Factor / ChainlineVaries Based on Crankset
Warranty2 years

In the Box

  • ROTOR INspider ALDHU Road Power Meter Crankset (spider, cranks, chainrings, aero crown)
  • USB cable for charging
  • User's manual

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  • 5.00 out of 5
    5.00 out of 5 based on 12 customer ratings
    (12 customer reviews)
    One of our best-selling power meter cranksets. Available in ALDHU 24 or 30 MM!
  • 0 out of 5
    An accurate spider-based power meter that can be used on virtually any bike!
  • 0 out of 5
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