Power Halo

As professional coaches know, compared to simply measuring heart rate, which can easily be aﬀected by environmental factors or personal physiological conditions, using a power meter is the best way to gain metrics for training because the data given by direct force shows the real output from every pedal stroke.

LEFT/RIGHT BALANCE

Four built-in strain gauges and an accelerometer cross-calculate to accurately determine the power of a pedal stroke and generate the left/right pedal balance in percentage, giving you information you need to keep your output equal.

PEDALING POWER PHASE METRICS

Pedaling power output phase metrics, given in chart form, help you ride more eﬃciently, telling you when to best apply power and saving you energy over the course of the ride.

LAB TESTED, FIELD PROVEN

Countless hours in the lab and on the course mean that the Power Halo's result accuracy in watts is +/-1.5% in all conditions, all the time.

STATE OF THE ART PROCESSORS & SENSORS

Applying cutting edge-spider based microprocessor technology to instantly calculate data and incorporating a minimum energy consuming accelerometer, the Power Halo oﬀers industry-leading battery life, up to 100 ride hours on a single charge.

OPTIMIZED ALGORITHM

Developed through data acquisition with professional and amateur racers in real-world riding conditions, this algorithm compensates for weather variances as well as competing digital noise from nearby devices which can cause inaccurate or inconsistent data.

SMART & INTUITIVE CONNECTION

RideLink APP offers easy firmware update and calibration by connecting Power Halo to smart devices via Bluetooth and ANT+ as well as displaying multiple pedaling data.

Explore more

Get Started with Power Halo

Install Power Halo with Chainring

Calibrating Power Halo

Troubleshooting

If you encounter any of the issues listed below and are unable to solve them following our suggestions, please contact an authorized Giant retailer.

I can’t charge my Giant Power Halo.

Make sure the charging cable is connected securely to your Giant Power Halo.
Make sure that the charging plug is not oxidized or damaged.

I can’t pair my Giant Power Halo with my cycling computer.

Check the battery level of your Giant Power Halo.
Make sure your Giant Power Halo is awake.
Confirm that your cycling computer has a pairing function.
Confirm that your cycling computer is ANT+™ compatible.

My Giant Power Halo doesn’t display battery level.

Check the battery level of your Giant Power Halo.
Make sure that your Giant Power Halo has paired successfully with your cycling computer.
Make sure your cycling computer is functioning correctly independent of your Giant Power Halo.
Confirm that your cycling computer has power level display functionality.

Unusual calibration values appear during calibration process.

Try re-calibrating your Giant Power Halo.
Update your Giant Power Halo firmware.

Unusual power values(too low or too high) appear on the cycling computer display.

Make sure the crank / Giant Power Halo bolts are tight.
Try re-calibrating your Giant Power Halo.
Update your Giant Power Halo firmware.

LED malfunction

If the light is off, make sure your Giant Power Halo and cycling computer are paired successfully. If they are paired but the light
is off, the LED may be damaged. Please contact an authorized Giant retailer.
If your LED is blinking erratically, please contact an authorized Giant retailer.

Can I use an oval chain ring on my Power Halo equipped crank set?

The Power Halo hardware and software are designed to accurately measure the power values coming only from round chain rings. Oval rings are not compatible. Any modification of the original chain ring configuration will influence correct functionality of Power Halo and will void the warranty.

SRAM Crankset Compatibility