Frequently asked questions

How do I know if my frame is compatible with the 2INpower axle?

2INpower is equipped with the UBB30 axle system, which was introduced by ROTOR. UB30 axle is a 30 mm axle compatible with almost all standard frames in the market (when used with the correct spacers). ROTOR 2INpower can be installed on your bicycle even if your current cranks are 24 mm diameter. UBB30 is compatible with the following road standards: BB30, PF30, BSA threaded, BBright and BBright Direct Fit, BB86 and BB386 EVO. The only frames not compatible with the UBB30 system are the BB90 frames (for 24 mm axle). This standard uses bearings that are directly pressed into the frame, without using any intermediatw bottom bracket. 

How to charge the battery?

Read the user manual for proper battery charging.

Open the dust cover in the drive-side crank and connect the magnetic connector from the USB cable included in the box. Make sure that the LED in the right crank blinks yellow or green. The LED light will turn off when charging is complete. 

How do I decide which INpower to buy if I already have ROTOR cranks?

One of the many advantages of the INpower power meter is its compatibility with every ROTOR crank with 30 mm axles (FLOW, 3D+ and 3D30 road cranks; REX1 and REX2 MTB cranks; it is also compatible with the specific 3D+ and 3D30 models for cyclocross).

If you are already using ROTOR cranks, you have the opportunity to purchase the non-drive-side INpower assembly for your current model (if it is not prior to 2013). To complete the installation, you may use the drive-side crank assembly that you already have.

Make sure the length of the new INpower crank and your current crank are the same in order to guarantee full compatibility.

WARNING: you must use the self-extractor set of washer, bolt and nut included with your left INpower assembly. If another bolt is used it will damage the electronics located inside the spindle. If this happens, the warranty is no longer valid. Follow the instructions on the user manual to correctly install the INpower drive-side crank assembly.

How often do I need to calibrate my ROTOR 2INpower?

To assure accurate measurement, it is necessary to correctly calibrate the cranks. It is not necessary to calibrate your 2INpower before every ride, but it must be calibrated when:

-Power meter is installed on the bicycle

-Pedals are installed or changed

-Chainrings are installed, requiring the cranks to be disassembled.

Calibration is not required after charging the battery.

Calibrating a second time is recommended after 30 hours of riding.

Read the user manual carefully to successfully complete the calibration process.

ROTOR Power vs INpower

ROTOR Power mide ambas piernas por separado utilizando medidores en cada biela. ROTOR INpower realiza la medida sobre la pierna izquierda. La potencia que se muestra es el resultado de la extrapolación (funcionamiento por defecto para multiplicar por dos la potencia medida en la pierna izquierda). Además de las nuevas métricas para el análisis del pedaleo introducidas por ROTOR Power (efectividad del par y suavidad del pedaleo) ROTOR INpower ofrece información adicional, cómo el gráfico 360º y el OCA

ROTOR 2INpower vs INpower?

ROTOR 2INpower measures both legs separately using gauges placed in each crank. ROTOR INpower measures in the spindle power generated by the left leg. The power value that’s shown is the result of extrapolation (default operation to multiply by two power measured in the left leg). In addition to the new metrics for pedal analysis introduced by ROTOR Power: Torque Effectiveness and Pedal Smoothness, ROTOR INpower offers additional information, such as the Torque 360 graph and the OCA (Optimum Chainring Angle) value.

What ANT devices is ROTOR INpower compatible with?

They are listed in the ANT+ directory: