Rotor INPower MTB Crank Arms for Direct Mount Chainrings
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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 available at RA Cycles - Brooklyn
Usually ready in 24 hours
Questions about this product?
Questions about this product?
Rotor INPower MTB Crank Arms for Direct Mount Chainrings
Rotor INPower MTB Crank Arms for Direct Mount Chainrings Info
The Rotor INPower MTB Crank Arms for Direct Mount Chainrings put a left-side power meter directly into the cranks you're already riding — no pedal swaps, no spider replacements, just clean integration built around a left-arm axle that houses four strain gauges in two opposing pairs. That placement keeps the sensing hardware inside the axle where trail debris, mud, and impacts can't reach it. An IP67 waterproof rating means you're not cutting rides short when conditions turn.
The INPower transmits power, cadence, torque, and pedal smoothness data over both ANT+ and Bluetooth, pairing with any standard cycling computer. Pair it with the Rotor Power App and you get access to Torque 360 and Optimum Chainring Angle data — metrics designed to help you understand and refine your pedaling biomechanics over time, not just track numbers. Available in 165mm and 175mm crank lengths to match your setup, and designed to accept direct mount chainrings.
Rotor INPower MTB Crank Arms Specs at a Glance
- Measurement: Left-arm power, cadence, torque, pedal smoothness
- Strain gauges: Four gauges (two opposing pairs) located in the crank axle
- Connectivity: ANT+ and Bluetooth dual transmission
- Waterproof rating: IP67
- Chainring compatibility: Direct mount
