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ROTOR INspider KAPIC Carbon MTB Power Meter

Josh Matthew June 29, 2022


A ROTOR spider-based MTB crankset on a full carbon KAPIC crankset!

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ROTOR INspider KAPIC Carbon MTB Power Meter

The ROTOR INspider KAPIC Carbon MTB 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 MTB cranksets, the 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.



Crank Arm Length: 165 mm | 170 mm | 175 mm

Chainring Size: 34T | 36T | 38T

Chainring Shape: Round | Oval

Spacing: Boost | Super Boost


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: The power meter is compatible with ROTOR 110×4 Chainrings, which are available in round and oval and can be purchased on this page along with the power meter.

Bottom Bracket: This power meter fits 30 MM bottom brackets. If you currently have a 30 MM crankset on your bike, you should be able to re-use your existing bottom bracket. However, if you are chaining spindle sizes, you will need to replace your bottom bracket.

ROTOR INspider KAPIC Carbon Crankset Specs

NameROTOR INspider KAPIC Carbon MTB Power Meter
Bike TypeMTB
Location of Power MeasurementSpider
Left or Both Legs MeasuredBoth
Independent Left/Right MeasurementNo
InstallationMore involved (60 min. estimated)
Chainring Configuration1X
Speeds9-, 10-, 11-, 12- and 13-speed
Chainline SpacingBoost and Super Boost
Crank Arm MaterialCarbon
Communication ProtocolANT+ and Bluetooth SMART
Claimed Accuracy+/- 1.0%
Active Temperature CompensationYes - Power Balance
Weight578 grams (175, 32T)
Battery TypeRechargeable
Battery Life200 hours
Method of Cadence MeasurementAccelerometer
BCD110 mm 4-bolt asymmetric
Spindle Size30 mm
Q FactorVaries based on crankset
Warranty2 years

In the Box

  • ROTOR INspider KAPIC Carbon Crankset (spider, cranks, chainring)
  • USB cable for charging
  • User's manual

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    5.00 out of 5 based on 2 customer ratings
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