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Accessories Power Meters - Pedals

Garmin Rally XC100 Single-Sensing Power Meter Pedals

A single-sided pedal-based power meter for mountain, gravel or allroad cycling can deliver accurate and reliable power measurement at a great price. If straightforward power information is what you need to develop as a cyclist, the Garmin Rally XC100 series pedals are a great choice. For strong and durable aluminum mountain pedal/cleat bodies, Garmin is offering a single design, in either this single power measurement XC100 version, or the dual pedal measurement of the XC200 model. All other aspects and details are the same. Garmin previously offered the Vector series power meter pedal system, and the Rally-series are built from the development and hard-earned lessons from the Vector 3. The axle design of the Rally series, which carries the power measurement devices, communication gear and replaceable battery is a physical match for the final version of the Vector 3 design. It is true the Vector 3 had some issues, but these were generally related to the battery system. Garmin has worked through iterations to correct this, and by all accounts, the final Vector 3 solution has been effective. There was never a real issue with the accuracy of the Vector 3, so Garmin knew it had a proven measurement system. The battery itself, the battery port cover and seal, as well as the threaded receiver in the pedal body have all been fully updated in the Rally series.

One major selling point of the Rally is the fact that the axle system is universal to all Rally pedal bodies, both R and XC models, and is backwards compatible with the Vector 3. This allows the bodies to be interchangeable as all have the same bearing system as well. So if you have a Vector 3 and want to convert it a Garmin SPD mountain body, which is offered as an upgrade body set, or the complete pedalset, you can use your existing V3 axle to make the change. Or, if you normally use road pedals most of the year, and mountain pedals in the winter, as many cyclists do, you could change out the bodies and have all the same power measuring benefits year round. This modular system offers this benefit, and potentially other options down the road, if you will.

The Rally XC100 pedals install like any pedal and have wrench flats for a standard pedal wrench. There is a torque spec recommended (34Nm), which is bit more than most pedals recommend, but torque won't impact the power measurement. Just make sure the pedals are tight. With the Rally 100 series pedals the power meter is in the left pedal. As it installs like any other standard pedal, it is easy to swap your XC100's from bike to bike. You are then free to seriously performance by measuring power and cadence via the various metrics and processing done via your head unit. One note, as a single sided power meter, the Rally 100 pedals don't trigger Garmin's advanced Cycling Dynamics. Those require a dual sided system. Not everyone needs Cycling Dynamics, but if you start with the Rally 100 pedals and want to upgrade, you will have the ability to add the power meter version of the right pedal, sold as a standalone items. Just know that the in the dual set-up, the right pedal communicates with the left, and the left communicates with your computer head unit. Shimano SPD cleats in both SH51 and SH55 models are fully compatible with the Rally XC pedals, and the supplied Garmin version is the equivalent of the Shimano SH51.

As far as accuracy, the Rally XC100 has been tested at +/- 1%, which is the equal of the best power meters on the market. Garmin equips them with both ANT+ and Bluetooth communication so you have ease of set-up. Generally we recommend using ANT+ for stability and simplicity, especially with Garmin Edge GPS head units and compatible wearables, but you have options. Pairing is generally fast and simple. Generally you will performing field calibration regularly, and at release Garmin recommends allowing your bike to acclimate to outdoor temperatures for 10-15 minutes. This allows the temperature compensation to be more accurate. As mentioned, the Rally 100 pedals transmit power and cadence, with speed coming from GPS for most users, but you can always had a speed sensor to your bike if you prefer direct measurement. Battery life varies but is rated to 120 hours. It is easy to change the CR1/3N battery via the compartment cap on the crankside end of the pedal axle. Garmin does have a weight limit on Rally pedals, at 231.5 lbs. The set-up is rated to the IPX7 level for water protection, which means it can stand submersion in 1 meter of water for 30 minutes, so the seals can easily handle even the rainiest days, muddy trails or stream crossings.

Given the nature of today's stronger communication standards and compatibility across systems, the Rally 100's are very user friendly with Garmin/Tacx family equipment and apps, as well as third-party apps such as Strava, TrainingPeaks®, TrainerRoad and many more. Training with power can truly teach you about your strengths and weaknesses as a cyclist, and most coaching and advanced training programs utilize power as a primary metric. Keep in mind that offroad measurement has more variables than road use, and how each company adjusts for rough terrain and effort may vary, but what matters is your XC100's will be consistent to themselves so you will have consistent formulation. Even if you don't race or plan to race, understanding your power output can improve you as rider by informing how you can improve or be more efficient, as well as helping you to understand when you need a rest or easy day to prevent overuse. If you are ready to undertake the challenge of improving, or are unhappy with a different power measuring option, the Garmin XC100 SPD-SL Pedals are capable and ready to roll.

Features

  • MTB style pedal set with single side power measurement (left), in SPD compatible Garmin alloy bodies
  • Mountain style pedals ideal for any gravel, mountain, even road riding for those who prefer SPD
  • Aluminum bodies with steel engagement systems are rated for impact, overall strength and durability
  • Accurately measures and transmits power and cadence to compatible head units and apps
  • No-fuss installation, just install as you would standard pedal, via pedal wrench flats
  • Modular Rally axle design compatible with all Rally road and XC models, easy to swap out
  • Ability to upgrade to dual side measurement at any time by purchasing right side power pedal
  • Actual metrics developed and viewed on head unit or via app (single side does not trigger Cycling Dynamics, which requires dual side measurement)
  • Communication: ANT+® and Bluetooth®
  • Power measurement: spindle based (left side pedal)
  • Power accuracy: +/-1%
  • Field calibration easily managed with head unit
  • Temperature compensation- recommended that bike be at outside temps 10-15 before riding for accuracy
  • Q-factor: 53 mm (55 mm with provided 2 mm washer)
  • Stack height: 13.5 mm
  • Battery life: up to 120 hours
  • Battery type: CR1/3N (or LR44/SR44 [x2], though we recommend the CR1/3N)
  • Water resistance: IPX7 (up to 1 meter submersion/30 minutes)
  • Maximum rider weight: 231.5 lbs /105 kg
  • Pedal body features adjustable cleat release tension for each side of the pedal
  • Cleat type: steel SPD 2-bolt (includes Garmin SPD cleats)
  • In the box: pair of Garmin XC100 pedals w/left pedal power meter, cleats & hardware, 2mm pedal washers, documentation)
  • Color: Black
  • Weight: 451 grams
  • Note: As with all such devices, we recommend checking firmware out of the box, using the Garmin app, as well as periodic checks