Garmin Rally RK210 Review 2026: Dual-Sensing Power Meter Pedals for Triathletes
The Garmin Rally RK210 is Garmin’s dual-sensing power meter pedal for Look Keo cleats. It measures power on both legs, so it also reports left/right balance, and it is the pedal to look at if you want power data on a tri bike and a road bike without fitting a crankset meter to each. BikeRadar lists the launch price at £929.99. Tredz now sells it for £699.99. We have not tested the pedals ourselves, so this page draws on Garmin’s specs, Tredz’s product listing and BikeRadar’s independent review.
Price check: £699.99 at Tredz at time of writing (28 September 2026), with stock showing when we checked.
Key specs
- Dual-sensing power. Both pedals measure, giving left/right balance, seated versus standing time and power phase data.
- Cleats: Look Keo.
- Battery: up to 90 hours claimed. Fifteen minutes of charging gives up to 12 hours of riding. BikeRadar notes magnetic USB-C charging replaces the coin-cell batteries of earlier Rally pedals.
- Accuracy: Garmin claims within plus or minus 1%.
- Weight: 315g excluding cleats, per BikeRadar.
- Build: carbon construction with a removable power sensor that works with Rally 110 and 210 road or off-road pedal bodies. BikeRadar lists an IPX7 water rating.
- Calibration and travel: Pedal IQ alerts you when calibration is needed, and travel mode conserves battery in transit.
What independent testing found
BikeRadar gave the RK210 four stars and called it Garmin’s best power meter pedal to date. Its reviewer compared the data against a 4iiii Precision 3+ Pro crank meter and a Tacx Neo 3M smart trainer, indoors and outdoors, and found it accurate and consistent. The main criticism was price against Favero’s Assioma pedals. Read the full review on BikeRadar.
Who it suits
- Look Keo riders. If your shoes and cleats are Look Keo, the RK210 is the matching model. Garmin makes the Rally RS210 for SPD-SL cleats and the XC210 for SPD cleats.
- Riders who want left/right data. Dual-sensing costs more than the single-sensing 110 series. It is worth paying for if you are working through a bike fit or recovering from a leg injury and want to see the split.
- Multi-bike triathletes. Pedals swap between bikes with a 15mm spanner and a 5mm hex key, which is simpler than owning a crank meter for each frame.
If you are switching to Shimano’s new SPD-SLR system (covered in our SPD-SLR explainer), the RK210 is not an option, because it takes Look Keo cleats.
Before you buy
- Compare the Favero option. Our comparison of the Favero Assioma Duo and the Garmin Rally RS200 covers the price gap and features.
- Decide between pedals and cranks. Our pedal versus crank power meter guide sets out the trade-offs.
- Check the price again. The £699.99 Tredz price is £230 below the launch price BikeRadar quotes, and retail prices move.
More reading: the best power meter pedals for triathlon and our Garmin Rally RS200 review.
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