Combined Shape Bike IQ

Compatible Sensors

Bike IQ pairs with standard Bluetooth cycling sensors, plus the radars, tire pressure sensors, e-bike drives and electronic groupsets listed below. Every one of them works on the free version. With no sensors at all, Bike IQ still estimates power, cadence and gear from your iPhone.

At a Glance

Sensor What works What you get
Power meters Bluetooth power meters, whether pedal, crank, spider or hub based Live power, power curve and zones. If a power meter drops out mid-ride, Bike IQ falls back to estimated power.
Heart rate Bluetooth heart rate straps and armbands, and Apple Watch through the Bike IQ Watch app Heart rate and zones on the ride screen and in the ride report
Speed and cadence Bluetooth speed and cadence sensors Wheel-based speed and measured cadence
Radar Garmin, Trek, Bryton, CYCPLUS, Giant, Magicshine, Magene, Lezyne, COOSPO, iGPSPORT, and SIGMA Vehicles approaching from behind, with audio alerts
Tire pressure RideNow TPMS 1.0, Tubolito SYNCD and Quarq / Zipp TyreWiz Live front and rear pressure, with low-pressure alerts
E-bike drives TQ HPR40 and HPR50 Motor power, assist mode and e-bike battery, plus power, cadence and speed from the drive. Your own power stays separate from the motor's.
Electronic groupsets SRAM AXS and Shimano Di2 Live gear position and battery levels. Mapping shifter buttons to app actions is part of Bike IQ Pro.

All sensor support is free. The only sensor-related Pro features are shifter button actions and BLE Broadcast. See Free and Pro.

Riding With No Sensors

Speed comes from GPS, grade from the iPhone's barometer, cadence from its motion sensors, and power from a physics model of you, your bike and the wind. Validated against Quarq and Favero power meters, estimated power has a mean absolute percentage error of 12%. Cadence without a sensor has a mean absolute error of 3.45 RPM, with 86% of readings within 5 RPM.

Estimated power is still an estimate: it does not match a dedicated power meter on every pedal stroke. See the Virtual Power Meter guide and the whitepapers for how each number is worked out.

Sending Data to a Head Unit

Keep your Garmin or Wahoo and let it record Bike IQ's numbers. With BLE Broadcast, part of Bike IQ Pro, your iPhone shows up on the head unit as standard heart rate, speed and cadence, and power sensors, so it pairs the same way any strap or power meter does.

What Does Not Work

  • ANT+ only sensors. Bike IQ supports Bluetooth sensors. Most modern cycling sensors broadcast over both ANT+ and Bluetooth, so they pair directly. An older ANT+ only sensor needs a Bluetooth bridge device.
  • AirPods heart rate. AirPods are not a heart rate source in Bike IQ. Use a Bluetooth heart rate monitor or an Apple Watch.

Missing Your Sensor?

New sensors get added based on what people actually ride with. If yours is not here, open the sensor scan screen in Bike IQ, tap Can't find your sensor? and send us the brand and model.

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