The fender itself can be gently squeezed or pulled out w/your fingers, squeezing increases overall diameter, pulling wider decreases. You can put washers between the fork and fender to lower it, but then you will need to adjust the diameter even more. If you want really close fenders, I would recommend some more modern middle weights instead of mucking up the big ones. Personally, I like the ones you're using, and they look pretty close to a good fit as is. :wink: