ROTOR’s newest power meter, the ROTOR 2INpower Crankset Power Meter, makes several improvements over the previous generation ROTOR power meter (the INpower). Perhaps the biggest change is the 2INpower features independent left/right power measurement. ROTOR has added two additional sets of strain gauges to the right crank arm that measure right leg power. Four strain gauges located in the crank axle measure the left leg’s power output (as is the case with the previous INpower version). The ROTOR 2INpower has Bluetooth SMART functionality, a built-in rechargeable battery and comes with a bolt circle diameter (BCD) of 110 mm.
ROTOR 2INpower Highlights
Dual-Sided Power Measurement
With 2 separate sets of strain gauges, the ROTOR 2INpower measures both left and right leg power data independently.
Bluetooth SMART Technology
In addition to broadcasting power data with ANT+, the 2INpower also features Bluetooth SMART Technology. This allows you to use the power meter with any cycling computer, smartphone or tablet.
Integrated Electronics Inside
Electronics and battery are integrated inside the axle, making 2INpower shock and contaminant resistant, and waterproof with cleaner data transfer.
UBB. Universal Bottom Bracket
ROTOR 2INpower cranks are compatible with almost every bike frame in the market.
NEW Features Optimized for Q-Rings
TORQUE 360 and OCA (Optimum Chainring Angle) help cyclists precisely and accurately analyze force variations in their pedal stroke.
Compatible With All ROTOR 30 mm Cranks
2INpower’s axle-based technology offers a wide range of cranks for both road and off-road riding.
ROTOR Power Meter Options
The 2INpower is available in the following crank arm lengths: 165 mm | 170 mm | 172.5 mm | 175 mm.
ROTOR Power Meter Compatibility
2INpower is equipped with a 30 mm Universal Bottom Bracket (UBB) system. UBB30 is compatible with almost all standard frames in the market (when used with the correct spacers). This power meter 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.
The only frames not compatible with the UBB30 system are BB90 and BB95 (both for 24 mm diameter axle).
In the Box
ROTOR 2INpower Crankset
USB cable for charging
Power Meter Type
Axle / Bottom Bracket
Number of strain gauges
8 (4 in right crank arm, 4 in axle)
645 grams (172.5 mm)
Crank Arm Lengths
165, 170, 172.5, 175 mm
Left/Right Power Measurement
Bluetooth and ANT+
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