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ROTOR INspider ALDHU Road Power Meter Crankset

Josh Matthew July 8, 2021


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

The INspider can also be set-up in a 1x chainring configuration using any ROTOR 110 BCD 4-bolt chainring for $1,049. Contact us for details

Chainring Shape: Round | Oval

Please note: ROTOR Aero Crown pictured is sold separately.



This ROTOR ALDHU crankset uses a 30 mm spindle and is compatible with most bike frames when used with the correct bottom bracket.

PLEASE NOTE – If you would like this power meter crankset in a 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 details.


In the Box

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

ROTOR Aero Crown sold separately


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




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