https://www.thingiverse.com/thing:47625/files
Bike Light Holder by OoiTY
A simple torch holder for bikes. Designed for a torchlights that are about 27mm and 24mm in diameter, give or take a couple of milimeters. I can't program in SCAD, so it's not parametric, sorry!
www.thingiverse.com
Bike_Light_holder.stl
0.54MB
Bike_Light_holder2-0.stl
0.55MB