Power Meter Pedals: Garmin Rally RS100 or RS200
The Garmin Rally RS100 and RS200 are power meter pedals for road riders who want reliable data, Shimano SPD-SL compatibility and the flexibility to move their power meter between bikes. If you are comparing power meter pedals for training, racing or structured indoor sessions, this is one of the most practical Garmin options.
Both versions measure power and cadence with a sleek pod-less pedal design. The key choice is simple: RS100 is the single-sided option, while RS200 is the dual-sided option for riders who want left/right balance and deeper cycling analysis.
Why choose this product
- Power meter pedals with Shimano SPD-SL compatibility for road cyclists.
- Easy to install like standard pedals, so switching between bikes is simpler.
- Measures total power and cadence to support better pacing and training.
- ±1% stated accuracy helps riders trust the numbers they train with.
- RS100 offers a lower-cost entry into pedal-based power measurement.
- RS200 adds dual-sided measurement, left/right balance and advanced cycling dynamics.
- Up to 120 hours of battery life supports long training blocks and regular riding.
- Works within the wider Garmin ecosystem and with popular third-party platforms.
Who is it for
These Garmin Rally power meter pedals are best for road cyclists who want a pedal-based system rather than a crank- or spider-based power meter. They make particular sense for riders who own more than one bike, want easier installation, or prefer Shimano SPD-SL road cleat compatibility.
- Best for: road training, racing, time-based intervals, indoor training, data-led pacing and riders who switch bikes regularly.
- Choose RS100 if: you want a more affordable entry point and mainly care about total power and cadence.
- Choose RS200 if: you want dual-sided measurement, left/right balance and more advanced pedalling analysis.
- Less suitable if: you do not use Shimano SPD-SL style cleats or you want an off-road SPD pedal system instead.
Browse more power meters, explore Garmin gears and drivetrain products, or shop all Garmin cycling accessories.
Comparison: which option makes more sense?
Garmin Rally RS100 vs RS200
Choose RS100 if you want the lower-cost way into power meter pedals and mainly want total power and cadence for training. Choose RS200 if you want the full dual-sided setup with left/right balance and more advanced insight into how you produce power.
Rally RS vs Rally RK
Choose the RS version if you ride Shimano SPD-SL style cleats. Choose the Garmin Rally RK power meter pedals if you use Look Keo cleats instead.
Pedal power meter vs other power meter types
A pedal-based power meter is usually the better choice if you want easier installation and the option to move the system between bikes. Other power meter types can still be strong options, but they are often less convenient when riders use more than one road bike.
Is it worth it?
Yes, if you want a flexible and training-focused way to add power to a road bike.
The strongest reason to choose the Garmin Rally RS system is convenience. You get reliable power data in a pedal format that is easier to install, easier to move and easier to match with a Shimano SPD-SL road setup.
RS100 makes the most sense for riders who want good data without paying for dual-sided analysis they may not need. RS200 is the better fit for riders who want a fuller picture of pedalling balance and technique.
Fit, setup and buying support
Better training data is most useful when the bike fit and riding position are right. For help with comfort and efficiency, visit our bike fitting service.
If you want to spread the cost, see our finance options. If you are buying eligible cycling equipment through work, read more about supported Cycle to Work schemes.
FAQs
What is the difference between Garmin Rally RS100 and RS200?
The short answer is this: RS100 is single-sided, while RS200 is dual-sided. RS100 gives total power and cadence. RS200 also adds left/right balance and advanced cycling dynamics for riders who want deeper analysis.
Are Garmin Rally RS power meter pedals compatible with Shimano SPD-SL cleats?
Yes. The RS version is designed for Shimano SPD-SL compatibility, which makes it the correct Rally option for many road cyclists using Shimano-style road cleats.
Are Garmin Rally power meter pedals easy to move between bikes?
Yes. One of the main benefits of pedal-based power meters is easy transfer between bikes. Garmin states that the Rally pedals install like standard pedals, so swapping them is simpler than many crank-based systems.
Are Garmin Rally RS100 power meter pedals accurate enough for training?
Yes. Garmin states ±1% accuracy for the Rally system, which makes these pedals suitable for structured training, pacing and performance tracking.
Do Garmin Rally RS200 pedals measure left and right power separately?
Yes. RS200 is the dual-sided version, so it measures left/right balance as well as total power and cadence. That helps riders who want more detail about how evenly they are producing power.
Do Garmin Rally power meter pedals work with Garmin Edge and training apps?
Yes. Garmin states that Rally integrates with compatible Garmin watches, Edge cycling computers and Garmin Connect, and it also supports third-party platforms such as Strava, TrainingPeaks and TrainerRoad.
How long does the battery last on Garmin Rally RS pedals?
Garmin lists battery life at up to 120 hours. That should suit most riders for regular training and longer riding blocks before replacement is needed.
Who should buy single-sided power meter pedals instead of dual-sided?
Single-sided pedals are the better fit if you mainly want total power and cadence at a lower price. Dual-sided pedals are the better choice if you want left/right balance and more advanced pedalling data.