The new 2INpower crankset from Rotor brings two-sided power metering

Pronounced “twin” power, the new 2INpower crankset takes the same low-profile power metering that we’ve seen in a range of aluminum Rotor cranksets and reworks it to truly measure dual-side power output. Rotor has joined the dual-sided individually measuring power put into each pedal as a metric to determine precise power balance and individual side power output to help serious athletes work on improving their pedaling performance.

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As the simply updated name suggests, 2INpower is an evolution building off the prior INpower tech. By adding right crank arm strain gauges to the left-side INpower bottom bracket axle sensors, Rotor gets dual-sided power.

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The right side measures power through two new pairs of strain gauges in the driveside crankarm, while the four carry-over strain gauges integrated inside the axle measure power being produced in the left leg. Obviously measuring in two different load paths made it a bit more complicated, so Rotor had a good task to work it out and balance the data outputs. But in the end the 2INpower solution makes for a clean and durable installation that outputs accurate and reliable two-sided power data.

2INpower transmits power, cadence, balance, torque effectiveness, and pedal smoothness data for each leg via standard ANT+. Rotor also offers left/right independent and/or combined pedal analysis using their Optimum Chainring Angle (OCA) and TOR QUE 360 software to help improve pedal stroke and optimize the timing of their non-round Q-rings.

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New to 2INpower, Rotor will also add Bluetooth Smart functionality for compatibility with even more cycle computers and app-based tracking solutions, although it isn’t clear if full BT functionality will be available at launch, and may require a later firmware update. 2INpower also gets a new built-in rechargeable battery over the previous coin cells. The new 30mm axle 2INpower cranksets will first be available only in 110BCD in 165, 170, 172.5 & 175mm lengths. The 148mm Q-factor cranks weigh 645g in a 172.5. The Rotor 2INpower cranksets will be available from April 2016 f0r 1500€.

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