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Power Meter Comparison Tool

Step 1. Bike – Road

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 road bike.

ROTOR 2INpowerROTOR INpower
Cost$1,500$779 - $1,139 (2)
Accuracy+/- 1.0%+/- 2.0%
Attributes:
Battery TypeRechargable Li-ionAA
Battery Life300 hours300 hours
Cadence DetectionAccelerometerAccelerometer
L/R Power BalanceYesNo
ANT+ / BLEBluetooth SMART and ANT+ANT+
Weight (1)645 grams (172.5 mm)325 - 597 grams (2)
Compatibility2INpower is equipped with the UBB30 axle. UBB30 is a 30 mm diameter axle which is compatible with almost all standard frames in the market (when used with the correct spacers). ROTOR 2INpower can be installed on your bike even if your current cranks are 24 mm diameter. Specifically, UBB30 is compatible with the following standards: BB30 (68/73 mm), PF30 (68/73 mm), BSA threaded, ITA threaded, BBright and BBright Direct Fit, BB86, BB386 EVO, BB89 and BB92INpower is equipped with the UBB30 axle. UBB30 is a 30 mm diameter axle which is compatible with almost all standard frames in the market (when used with the correct spacers). ROTOR 2INpower can be installed on your bike even if your current cranks are 24 mm diameter. Specifically, UBB30 is compatible with the following standards: BB30 (68/73 mm), PF30 (68/73 mm), BSA threaded, ITA threaded, BBright and BBright Direct Fit, BB86, BB386 EVO, BB89 and BB92
Pros2INpower cranks measure both left and right leg data independentlyElectronics and battery are integrated inside the axle, making INpower shock and contaminant resistant
Electronics and battery are integrated inside the axle, making INpower shock and contaminant resistantROTOR is the only crank/bottom bracket power meter that is Q-ring compatible
ROTOR is the only crank/bottom bracket power meter that is Q-ring compatible
ConsiderationsThe 2INpower uses a rechargable li-ion battery. The benefit to a rechargable battery is that you don’t have to worry about buying new batteries. However you do need to remember to charge it when the batter gets lowThe INpower measures left side power only

Select ROTOR

Notes

(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.

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