[thijsc]

https://www.senz.com/en

I own a couple of them, they work amazingly well. You can even use them on a bike with heavy wind.

[ableal]

Neat. Clicked around, found a video of testing to 133 km/h at the bottom of this page: https://www.senz.com/en/senz6/

[raldi]

... a.k.a. around 82 mph!

[justingood]

I can second this recommendation. One thing to note: The small folding version is less resilient than the larger model. A fine tradeoff, given its size.

[egeozcan]

These look really great, thanks for the recommendation!