# Garmin Rally RS200 vs Stages Power LR Shimano Ultegra R8100: specs and price compared

A sourced, side-by-side comparison of the Garmin Rally RS200 (Garmin) and Stages Power LR Shimano Ultegra R8100 (Stages) among cycling power meters. Stages Power LR Shimano Ultegra R8100 is the cheaper of the two at $864.99.

## Side by side

| Spec | Garmin Rally RS200 | Stages Power LR Shimano Ultegra R8100 |
| --- | --- | --- |
| US price | $1099.99 | $864.99 |
| Brand | Garmin | Stages |
| Mount type | pedal | crank-arm |
| Measurement sides | dual-sided | dual-sided |
| Accuracy pct | 1 | 1.5 |
| Weight grams | 320 | 15 |
| Battery type | CR1/3N | CR2032 |
| Battery life hrs | 120 | 175 |
| Connectivity | ANT+/BLE | ANT+/BLE |
| Power balance measured | Yes | Yes |
| Cycling dynamics | Yes | — |
| Waterproof rating | IPX7 | IPX7 |
| Warranty years | — | — |

## Key differences

- Mount type: Garmin Rally RS200 pedal vs Stages Power LR Shimano Ultegra R8100 crank-arm
- Accuracy pct: Garmin Rally RS200 1 vs Stages Power LR Shimano Ultegra R8100 1.5
- Weight grams: Garmin Rally RS200 320 vs Stages Power LR Shimano Ultegra R8100 15
- Battery type: Garmin Rally RS200 CR1/3N vs Stages Power LR Shimano Ultegra R8100 CR2032
- Battery life hrs: Garmin Rally RS200 120 vs Stages Power LR Shimano Ultegra R8100 175

## What reviewers say

**Garmin Rally RS200** — Two whitelisted cycling testers cover the exact RS200 and both rate the system accurate, clean-looking and versatile but pricey. BikeRadar reviewed the RS200 directly (4.5/5); DC Rainmaker bench-tested the RS200 SPD-SL variant against a Tacx NEO 2 and Stages LR (RS200 tracked near-identical to the Stages), and weighed the SPD-SL cleats at 40 g/side. BikeRadar flags the premium price and slightly delayed pickup from a stop; DCR noted the unit failed to compensate for a temperature shift on a cold day, fixable with a manual zero-offset. (Cycling Weekly was dropped: its hands-on test pair was the RK200 Look-Keo trim, not the RS200.) (2 sourced reviews.)

## Sources

- Garmin Rally RS200: https://www.garmin.com/en-US/p/658593/ (garmin.com, verified 2026-07-13)
- Stages Power LR Shimano Ultegra R8100: https://stagescycling.com/en_us/stages-power-lr-shimano-ultegra-r8100-dual-sided-power-meter (stagescycling.com, verified 2026-07-13)

Canonical: https://frontdeskreview.com/gear/cycling-power-meters/garmin-rally-rs200-vs-stages-power-lr-ultegra-r8100/
Cite: Per The Front Desk Review, Garmin Rally RS200 ($1099.99) vs Stages Power LR Shimano Ultegra R8100 ($864.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/cycling-power-meters/garmin-rally-rs200-vs-stages-power-lr-ultegra-r8100/
License: CC BY 4.0.