Fibre Flare Bike Lights review

Side on visibility is often overlooked by cyclists, potentially increasing the risk of accidents in low light. Fibre flare lights aim to significantly improve side illumination.

Cycling Weekly Verdict

Easy to use and mount with good visibility, these lights offer a reliable solution to side on illumination at a reasonable price. However, not being USB rechargeable is a big disadvantage.

Reasons to buy
  • +

    Easy to mount and use

  • +

    Good visibility

  • +

    Can also take them to raves

Reasons to avoid
  • -

    Not USB rechargeable

  • -

You can trust Cycling Weekly. Our team of experts put in hard miles testing cycling tech and will always share honest, unbiased advice to help you choose. Find out more about how we test.

Nearly 70% of all nighttime collisions between bikes and cars are due to inadequate side visibility. With most lights only visible from the front and rear, this is something often overlooked by cyclists, but Fibre Flare lights offer a solution.


A green Fibre Flare side light (25cm).

These lights enable you to be seen, rather than see, in low light. They do a good job though and we were impressed with the visibility on our commutes. We tested the red flare and the green side light flare. Fibre Flare have a promotional video which demonstrates how they look.

We were impressed with the versatility of the mounting, with hooks, for clothing/bags and rubber straps for your frame. These are simple, work really well and a secure, confident fit was always achieved.  Having to remove gloves to operate a button on a light can be annoying, especially during cold weather, but we found this wasn't necessary, the button being well designed.


The clips are great for attaching to clothing or a bag. Clips at both ends ensures a secure fit. Rubber straps can also be added.

The construction is of a rubbery plastic, which is ideal, because it can absorb impacts, such as dropping the lights or propping your bike against a wall. The rubbery polymer is also flexible which enables them to be mounted on curved objects.

The lights are powered by a pair of AAA 1.5V batteries which we feel is a big downside. Whilst battery life is decent, (claimed at 75 hours strobe and 24 hours constant) not being USB rechargeable represents a big disadvantage. Rechargeable lights save money, charging them at work and home ensures you always have power when you need it and they are more eco-friendly with respect to batteries.

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