Rotor INSpider Power Meter Crank Spider

Item number: 74177

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to the delivery destination: USA

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Delivery to USA is not possible.

Rotor INSpider Power Meter Crank Spider - black/universal
Rotor INSpider Power Meter Crank Spider - black/universal
Rotor INSpider Power Meter Crank Spider - black/universal
Rotor INSpider Power Meter Crank Spider - black/universal
  • 100 day return period
  • Online since 1998
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The Rotor INSpider power meter crank spider - unlimited compatibility

Rotor's INSpider power meter spider is a power meter that can be attached to all modular Rotor Direct Mount cranks, such as ALDHU or R-Raptor, to provide them with a reliable, advanced power measurement function. Inside there is a rechargeable battery and the waterproof covered, sealed electronics. The spider provides combined left-right measurement to accurately determine power and cadence. Whether MTB or Road, whether with one or two chainrings, the INSpider is suitable for all types of bikes and riders.

Information regarding the return of batteries and electrical equipment:

Find out more here.


Application: Road, Triathlon & Time Trial, Cyclocross, Cross Country, Enduro, Downhill
Type: crank spider with power measurement (on both sides)
Compatibility: 1x, 2x
Chainring Mount: 110 mm pitch circle, 4-arm asymmetrical

Technical Information:

Material: aluminium (7075)
Tolerance: +/- 0.5 %
Point of Measurement: spider
Power Source: integrated li-ion battery, rechargeable
Battery Life: 200 h
Data Collected: power, cadence
Waterproof: IPX7
Data Transfer: ANT+, Bluetooth


- ALDHU cranks
- ALDHU 24 cranks
- VEGAST cranks
- KAPIC cranks
- KAPIC Carbon cranks
- R-Hawk cranks
- R-Raptor cranks
- Rotor 110x4 1x, 2x Road bike and 1x MTB chainrings, round or oval
- Bluetooth Smart and ANT+ make it compatible with almost all popular bike computers


- mounting and retrofitting of any rotor OCP Direct Mount crank for 1x and 2x Road and MTB possible
- can also be combined with 24 mm axles
- very light
- integrated rechargeable battery with up to 200 h operating time (rechargeable battery permanently installed and cannot be replaced independently)
- measurement on both sides (left, right, combined)
- protected electronics encapsulated in housing
- magnetic charging connection (waterproof)
- can be mounted with a 10 mm hex key, no special tools required
- 100 % CNC-machined
- Aero Crown optionally available


INSpider Functionality
The INSpider measures the joint performance of both legs using 4 opposing strain gauges. This allows very precise data to be collected on performance and clearly shows potential for improving pedalling performance. The spider is equipped with a temperature measurement function and independently compensates for measurement errors caused by temperature fluctuations. It must be recalibrated after each assembly or change of a chainring and at least once a month.

CNC machining (CNC = Computer Numerical Control) ensures a precise and uniform production process. This is particularly important when manufacturing components that function properly and must work together with the other parts. Thanks to state-of-the-art CNC equipment, Rotor parts are manufactured with extreme precision down to a hundredth of a millimetre.


- 1 x Rotor INSpider power meter crank spider


  • black/universal: 149 g


in stock 2 to 7 days up to 10 days up to 20 days inform me
  • black/universal

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