So I don’t know if there has already been a post about this but I recently purchased the Canyon gear groove flash 800 headlight with Garmin mount. But in my search I could find on the website if it would fit my Garmin edge 1040. Today I received it and I can confirm it fits even with the Garmin rubber case/bumper. Probably will also fit edge 1050 since I think it’s about the same size.
Hope this is helpful to someone.
by orcxrogue