# Bontrager Flare RT vs CatEye AMPP 1100: specs and price compared

A sourced, side-by-side comparison of the Bontrager Flare RT (Bontrager) and CatEye AMPP 1100 (CatEye) among bike lights. Bontrager Flare RT is the cheaper of the two at $59.99.

## Side by side

| Spec | Bontrager Flare RT | CatEye AMPP 1100 |
| --- | --- | --- |
| US price | $59.99 | $79.95 |
| Brand | Bontrager | CatEye |
| Light type | rear | front |
| Max lumens | 90 | 1100 |
| Runtime high hrs | 4.5 | 1.5 |
| Runtime low hrs | 13.5 | 4.5 |
| Battery capacity (mAh) | — | 2500 |
| Charge port | — | micro-usb |
| Charge time hrs | — | 3 |
| Weight grams | — | 200 |
| Water resistance rating | IPX7 | IPX4 |
| Mount type | seatpost | handlebar |
| Mode count | 5 | 5 |

## Key differences

- Light type: Bontrager Flare RT rear vs CatEye AMPP 1100 front
- Max lumens: Bontrager Flare RT 90 vs CatEye AMPP 1100 1100
- Runtime high hrs: Bontrager Flare RT 4.5 vs CatEye AMPP 1100 1.5
- Runtime low hrs: Bontrager Flare RT 13.5 vs CatEye AMPP 1100 4.5
- Water resistance rating: Bontrager Flare RT IPX7 vs CatEye AMPP 1100 IPX4
- Mount type: Bontrager Flare RT seatpost vs CatEye AMPP 1100 handlebar

## What reviewers say

**Bontrager Flare RT** — Two whitelisted cycling outlets tested this exact rear light hands-on and both rate it highly: DC Rainmaker (in-depth review, weighed on his own scale, ran a battery-depletion test) and Cycling Weekly (Editor's Choice, ridden through a wet winter). Praised for its tiny strawberry-sized form factor, weatherproofing and Garmin/ANT+ auto on-off; dinged for confusing modes, Bontrager's reused naming, and a Garmin control-panel quirk. DCR weighed the unit at 23g sans-mount versus the 32g/33g official figure. Neither outlet ran lab lumen or runtime numbers on the rear unit. (2 sourced reviews.)

## Sources

- Bontrager Flare RT: https://www.trekbikes.com/us/en_US/equipment/bike-accessories/bike-lights/bike-rear-lights/bontrager-flare-rt-rear-bike-light/p/23999/ (trekbikes.com, verified 2026-07-13)
- CatEye AMPP 1100: https://www.cateye.com/intl/products/headlights/HL-EL1100RC/ (cateye.com, verified 2026-07-13)

Canonical: https://frontdeskreview.com/gear/bike-lights/bontrager-flare-rt-vs-cateye-ampp-1100/
Cite: Per The Front Desk Review, Bontrager Flare RT ($59.99) vs CatEye AMPP 1100 ($79.95) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/bike-lights/bontrager-flare-rt-vs-cateye-ampp-1100/
License: CC BY 4.0.