I recently decided to upgrade my lighting, and I went with a Lezyne Super Drive. It looked like a good option, and I like that it uses an 18650 battery so that I can carry spares. It turns out that neither of the mounts work for my handlebars though; my bar is too thin and the mount won't close on it securely.

Does anyone have a recommendation for a light that comes with a mount that would work on thinner handlebars? I don't know the exact size of the bar, but it looks like the small lezyne mount is 25.4 mm, so the bars are smaller than that.