If these are personal cycle routes and not official it may be better to add to https://www.wikiloc.com/ or similar.
You can add images and a description, etc.
Here is an example of a hike on Wikiloc https://www.wikiloc.com/hiking-trails/mount-glorious-lepidozamia-road-toward-mt-daguilar-17912069
People can download the gpx