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ROTOR INspider Power Meter Crankset

Josh Matthew June 25, 2020


ROTOR spider-based power on your choice of ROTOR cranksets!

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ROTOR INspider Power Meter Crankset

The ROTOR INspider Power Meter Crankset is the first of its kind – a spider-based power meter that can be used on virtually any bike! Compatible with any of ROTOR’s newer direct mount cranksets, the INspider can be used on your road, CX, gravel, MTB 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%) and also means the power meter can measure left and right leg power balance. The INspider also features ANT+ and Bluetooth SMART and has a USB-rechargeable battery with 200-hour battery life.



The INspider is compatible with ROTOR’s complete range of cranksets. This includes the ALDHU and VEGAST cranks for road, CX, gravel and track and the Kapic Carbon, Kapic, Hawk and Raptor cranks for MTB.



Chainrings: The INspider can be set-up in a 1x or 2x chainring configuration using any ROTOR 110 BCD 4-bolt chainring. Please note, the smallest MTB chainring that will fit is a 34T. Chainrings sold separately.


In the Box

  • ROTOR INspider Power Meter
  • ROTOR Crank arms
  • USB cable for charging
  • User’s manual
  • Chainrings sold separately


ROTOR INspider Crankset Specs

NameROTOR INspider Crankset
Bike TypeRoad, CX, Gravel, MTB, Track
Location of Power MeasurementSpider
Left or Both Legs MeasuredBoth
Independent Left/Right MeasurementNo
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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