See those two plastic plugs on the rear side of the fork? Pop them out and they should be threaded. Take the eye of the fender stay and put a 90 in it right after the eye and you can bolt it to the back of the fork legs. had to do that with my hybrid. That was some time ago and if they weren't threaded I used self tapping screws and have run them for years. You can see them in the attached photo