# Stages Power LR Shimano Ultegra R8100 vs Sigeyi AXO SL: specs and price compared

A sourced, side-by-side comparison of the Stages Power LR Shimano Ultegra R8100 (Stages) and Sigeyi AXO SL (Sigeyi) among cycling power meters. Sigeyi AXO SL is the cheaper of the two at $389.5.

## Side by side

| Spec | Stages Power LR Shimano Ultegra R8100 | Sigeyi AXO SL |
| --- | --- | --- |
| US price | $864.99 | $389.5 |
| Brand | Stages | Sigeyi |
| Mount type | crank-arm | spider |
| Measurement sides | dual-sided | — |
| Accuracy pct | 1.5 | 1 |
| Weight grams | 15 | — |
| Battery type | CR2032 | rechargeable-liion |
| Battery life hrs | 175 | 300 |
| Connectivity | ANT+/BLE | ANT+/BLE |
| Power balance measured | Yes | No |
| Cycling dynamics | — | Yes |
| Waterproof rating | IPX7 | IP67 |
| Warranty years | — | 2 |

## Key differences

- Mount type: Stages Power LR Shimano Ultegra R8100 crank-arm vs Sigeyi AXO SL spider
- Accuracy pct: Stages Power LR Shimano Ultegra R8100 1.5 vs Sigeyi AXO SL 1
- Battery type: Stages Power LR Shimano Ultegra R8100 CR2032 vs Sigeyi AXO SL rechargeable-liion
- Battery life hrs: Stages Power LR Shimano Ultegra R8100 175 vs Sigeyi AXO SL 300
- Power balance measured: Stages Power LR Shimano Ultegra R8100 Yes vs Sigeyi AXO SL No
- Waterproof rating: Stages Power LR Shimano Ultegra R8100 IPX7 vs Sigeyi AXO SL IP67

## Sources

- 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)
- Sigeyi AXO SL: https://www.sigeyishop.com/axo-sl-2/ (sigeyishop.com, verified 2026-07-13)

Canonical: https://frontdeskreview.com/gear/cycling-power-meters/stages-power-lr-ultegra-r8100-vs-sigeyi-axo-sl/
Cite: Per The Front Desk Review, Stages Power LR Shimano Ultegra R8100 ($864.99) vs Sigeyi AXO SL ($389.5) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/cycling-power-meters/stages-power-lr-ultegra-r8100-vs-sigeyi-axo-sl/
License: CC BY 4.0.