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ROTOR INspider Power Meter

Josh Matthew May 13, 2022


An accurate spider-based power meter that can be used on virtually any bike!

Only 1 left in stock

ROTOR INspider Power Meter

The ROTOR INspider Power Meter 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 – 24 and 30 mm spindles and crank arms from 150 to 175 mm. This allows you to 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.



Advanced Data Metrics

In addition to power and cadence, the INspider measures pedal smoothness, TORQUE 360, Optimum Chainring Angle and Optimal Chainring Position.

Work on Any Bike

This is the first spider-based power meter to be compatible across all disciplines including road, CX, gravel, MTB and track.

High Degree of Compatibility

The system can be used with multiple crank sizes and lengths including 24 and 30 mm axles and 150 mm to 175 mm crank arm lengths.

Bluetooth SMART Technology

The INspider features dual ANT+ and Bluetooth SMART. This allows you to use the power meter with any cycling computer, smartphone or tablet.

1x and 2x Compatible

The INspider has maximum flexibility and can be set-up in a 1x or 2x chainring configuration using any ROTOR 110 BCD 4-bolt chainring.

Q-Ring Compatible

Using ROTORs OCA (Optimum Chainring Angle), you can adjust your chainrings with maximum precision for optimized pedaling efficiency.


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


Cranks: The INspider is compatible with any ROTOR crankset that uses a direct mount splined interface. This includes the ALDHU and VEGAST cranks for road, CX, gravel and track and the KAPIC Carbon, KAPIC and R-Hawk cranks for MTB.

Chainrings: The INspider can be set-up in a 1x or 2x chainring configuration using any ROTOR 110 BCD 4-bolt asymmetric chainring. We have several road and MTB rings to choose from on our Chainrings page. Please note, the smallest MTB chainring that will fit is a 34T.

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

ROTOR INspider Power Meter Specs

NameROTOR INspider Power Meter
Bike TypeRoad, CX, Gravel, MTB, Track
Location of Power MeasurementSpider
Left or Both Legs MeasuredBoth
Independent Left/Right MeasurementYes - Power Balance
InstallationMore involved (60 min. estimated)
Chainring Configuration1X or 2X
Speeds9-, 10-, 11-, 12- and 13-speed
Chainline SpacingBoost and Super Boost (MTB)
Communication ProtocolANT+ and Bluetooth SMART
Claimed Accuracy+/- 1.0%
Active Temperature CompensationNo
Weight149 grams
Battery TypeRechargeable
Battery Life200 hours
Method of Cadence MeasurementAccelerometer
BCD110 mm 4-bolt asymmetric
Warranty2 years

In the Box

  • ROTOR INspider Power Meter
  • USB cable for charging
  • User's manual

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