I have several bikes with fenders. Most of mine are seventies and older. I think my car rack is a grabber 2 bike trunk rack. Its a hand me down so I don't know exact make; similar style to ones at sporting good stores. The fenders have never given me a problem. However, the bikes shape can make mounting tricky. My advice is keep the fenders. Get one of those bars that extends across your bike making the missing top bar that mens bikes used to have. I am sure a local bike shop can get you one. That solved my mounting issues. The only problem I had is that i didn't secure it properly once and broke the latch piece. I wish I had gotten mine a lot sooner. It is nice to be able to just slide it on there.