ROTOR INspider KAPIC Aluminum MTB Power Meter
The ROTOR INspider KAPIC Aluminum MTB Power Meter is the first of its kind – a spider-based power meter that can be used on virtually any bike! 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.
Key Product Details
Compatibility:
This power meter fits 30 MM MTB bottom brackets and 110 BCD 4-bolt chainrings. See Compatibility tab for more information.
Power Measurement:
The ROTOR INspider power meter measures power at the spider and is therefore able to measure power from both legs.
Key Features:
Dual-leg power measurement, accurate to +/- 1.0%, 200 hours of battery life, fits standard and boost frames, works great with oval chainrings, rechargeable battery, left/right power balance, ANT+ and Bluetooth compatibility. See Specs tab for more information.
Advice From Our Staff:
This is one of our favorite MTB cranksets. Here’s why: the ROTOR power meter measures power from both legs, is accurate and reliable. One consideration however is the smallest ring you can run on it is a 34T vs. the commonly used 32T.
Options For This Power Meter
- Crank Arm Length: 165 mm | 170 mm | 175 mm
- Chainring Size: 34T | 36T | 38T
- Chainring Shape: Round | Oval
- Spacing: Standard | Boost
Other Versions to Consider
INspider KAPIC Carbon: We also sell the ROTOR INspider KAPIC Carbon MTB Power Meter. It costs a bit more money, but features carbon fiber crank arms.
Compatibility
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.
Frame Spacing: The power meter fits both Standard and Boost frames based on the version ordered.
ROTOR INspider KAPIC Aluminum Crankset Specs
Name | ROTOR INspider KAPIC MTB Power Meter |
Bike Type | MTB |
Location of Power Measurement | Spider |
Left or Both Legs Measured | Both |
Independent Left/Right Measurement | Yes - Power Balance |
Installation | More involved (60 min. estimated) |
Chainring Configuration | 1X |
Speeds | 9-, 10-, 11-, 12- and 13-speed |
Chainline Spacing | Standard and Boost |
Crank Arm Material | Aluminum |
Communication Protocol | ANT+ and Bluetooth SMART |
Claimed Accuracy | +/- 1.0% |
Active Temperature Compensation | No |
Weight | 710 grams (175, 32T) |
Battery Type | Rechargeable |
Battery Life | 200 hours |
Method of Cadence Measurement | Accelerometer |
BCD | 110 mm 4-bolt asymmetric |
Spindle Size | 30 mm |
Q Factor | Varies based on crankset |
Warranty | 2 years |
In the Box
- ROTOR INspider KAPIC Aluminum Crankset (spider, cranks, chainring)
- USB cable for charging
- User's manual
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
Common Questions and Answers
Question: How do I determine what length my current cranks are so I can make sure I get the same size?
- Your crank arm length should be printed or stamped on the inside of the left crank arm, usually near the pedal end.
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