New answers tagged lighting
I've used 2 light brackets with bits of a third to make custom brackets before. I have a large spares box and a decent selection of tools for modifications. In your case a saddle post light bracket might fit round them stem giving you something to pick up on to mount your light. On eBay or dx you can find a wide range of torch mounts, smartphone mounts ...
If you're willing to go to the very cheap end of the spectrum, some lights can pivot in the mount as well as having a hinge for tilt. This awful thing from deal extreme, for example, runs on two watch batteries but does what you want: Alternatively, some of the "flashlight holders" are very adaptable (and probably also flexible) so would work. Like this ...
Maybe something like this may do the work? But I couldn't find anything around the stem.
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