BOOST-R Saddle Rail Bracket

Works a treat. Be nice to have a larger size of the standard, included mount that would better suit the larger diameter of a dropper but this is alright as long as you're not wearing a longer jacket that overhangs the saddle

Holds my light under the saddle like it's supposed to

Even with the saddle in its rear most position on the seatpost, there isn't enough room for the clamp to grip the light around the middle. It only just fits the light around the larger end diameter, but that isn't ideal. It grips well to the rails and the band attachment is simple and effective, but the lack of space for the light is an issue.