Skip to main content

Power Meter Comparison Tool

Step 1. Bike – MTB

Step 2. Power Meter Type – Bottom Bracket

Step 3. Select Power Meter

Your choice here is easy. ROTOR is the only manufacturer of a bottom bracket-based power meter for your MTB.

Cost$779 - $1,019 (2)
Accuracy+/- 2.0%
Battery TypeAA
Battery Life300 hours
Cadence DetectionAccelerometer
L/R Power BalanceNo
Weight (1)343 - 579 grams (2)
CompatibilityINpower is equipped with the UBB30 axle. UBB30 is a 30mm diameter axle which is compatible with almost all standard frames in the market (when used with the correct spacers). ROTOR INpower can be installed on your bike even if your current cranks are 24mm diameter. The only frames not compatible with the UBB30 system are BB90 and BB95 (both for 24 mm diameter axle)
ProsElectronics and battery are integrated inside the axle, making INpower shock and contaminant resistant
ROTOR is the only crank/bottom bracket power meter that is Q-ring compatible
ConsiderationsROTOR offers their INpower power meter as a complete crankset, or as a left arm only option for a lower price

Select ROTOR


(1) When considering weight, be sure to calculate the added weight of the power meter. For example, if a PowerTap hub weighs 320 grams, but the hub you are replacing weighs 250 grams, the net addition is 70 grams.

(2) ROTOR offers their INpower power meter as a complete crankset, or as a left arm only option for a lower price – hence the wide range in prices and weights.

Shopping Cart