Sigma Aura 100 review: StVZO-compliant headlamp with a powerful beam pattern for aero cockpits

Photograph with no dark areas

The Aura 100 It is not a new product, but remains a technically sound battery-powered headlamp for training rides in the dark, commuting and longer rides during the transitional seasons. Its greatest strength lies in its beam pattern. The light is distributed evenly from the near field right through to the far side of the road. There are no noticeable dark patches between the front tyre and the far end of the beam.

The Sigma thus makes it easier to find your way on unlit cycle paths and country roads. Bumps, the edges of the road and debris remain visible within the relevant field of vision. The illumination is balanced rather than concentrated in specific spots. This is a significant advantage for cyclists riding in changing light conditions: their eyes do not have to constantly adjust to sudden changes in brightness.

With a sub-score of 2.4 for its light pattern, the Aura 100 performs solidly. The light distribution is impressive, although it does not quite match the top models in the test in terms of range or runtime.

Four modes and an easy-to-read battery indicator

Sigma has equipped the Aura 100 with four lighting modes. This allows you to adjust the brightness to suit the route and ambient light. If you mainly cycle in town or on well-lit paths, you can save battery power. On dark routes, however, a more powerful mode is recommended.

The battery capacity is 2000 mAh. In testing, the headlamp achieved a runtime of two hours and 40 minutes, whilst it took three hours and 20 minutes to fully charge. The runtime is therefore shorter than that of the best competitors in the comparison. It is sufficient for normal training rides and everyday journeys, but for particularly long night-time rides, the remaining battery capacity should be carefully factored in.

The battery level indicator, featuring four white LED bars, is very handy. It displays the current battery level accurately and clearly. This reduces the risk of setting off on your evening ride with the headlight almost flat.

Front mount with snap fastener

A key factor in selecting this test setup was the ability to mount it on Aero cockpits with an extension arm. On the Aura 100, this is achieved using an accessory holder for GoPro mounts. The adapter clicks into place via a snap-lock mechanism and can be released just as quickly.

This system works brilliantly in everyday use. The headlamp is positioned neatly in front of the cockpit, rather than taking up valuable space on the handlebars. This provides a tidy solution for modern road bikes with integrated cables and aerodynamically shaped handlebars. TOUR therefore awards the mount the top mark of 1.0.

Another advantage of the Sigma Aura 100 is the pairing option with a compatible rear light. When both lights are paired, they can be switched on and off in unison. This makes them easier to operate before setting off and prevents one of the lights from being left off by mistake.

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