adapter rings for the Sigma Overclamp Butler often used with the sigma Rox cycling computers. there was no 26mm adapter included so i made one for my wife's roadbike. The cutout is much wider than on the original so you can route your cables through, no need for an unnecessesary kink.
Best printed with TPU or similar, works best with an (almost) solid infill otherwise it might squish too easily
The author marked this model as their own original creation.