Rotor INPower 3D+ MAS Crank
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This item is "Final Sale" and cannot be returned or exchanged
This item is "Final Sale" and cannot be returned or exchanged
This item is "Final Sale" and cannot be returned or exchanged. Once the order is processed, labeled, or shipped, the order cannot be canceled.
Every item goes through quality control prior to shipping. If there are any imperfections or issues, you will be notified prior to the order being processed.
Items on "Final Sale" are for online only. These items are not at our physical stores for purchase.
Pickup currently unavailable at RA Cycles - Brooklyn
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Questions about this product?
Rotor INPower 3D+ MAS Crank Info
The Rotor INPower 3D+ MAS Crank takes a different approach to power measurement — rather than attaching strain gauges to the crank arm exterior, Rotor houses everything inside the 30mm hollow aluminium spindle itself. That placement keeps the electronics shielded from crashes and the elements, and it puts the added mass — 30g — rotating at the smallest possible radius, which matters more than it sounds over a long ride.
The spindle-based design also makes the INPower notably resistant to temperature variation, a common source of drift in other power meters. The system samples at 200 times per second, averaging to five data points per second transmitted to your head unit via ANT+. Beyond raw wattage, Rotor includes two additional metrics: Torque 360, which maps pedalling forces across the full stroke, and OCA (Optimum Chainring Angle), which helps riders using Q-Rings dial in their oval chainring orientation. Stated accuracy is +/- 1.7% with Q-Rings. Power is supplied by a single AA battery, rated for up to 300 hours of riding.
Rotor INPower 3D+ MAS Crank Specs at a Glance
- Power meter location: inside 30mm hollow aluminium spindle
- Stated accuracy: +/- 1.7% with Q-Rings
- Sampling rate: 200 samples/sec, 5 transmissions/sec
- Transmission: ANT+
- Battery: single AA, up to 300 hours
- BCD: 110 | Crank length: 170mm
Rotor INPower 3D+ MAS Crank Video
