The 1UP USA rack is perfect for my step through frame with fenders. There is one contact point on each tire and none on the frame itself. The spool that contacts the tire is adjustable (7 different positions) so that you can select the position that it contacts the tire.
1UP USA also offers foam rollers that cover the spools so that you can position the spool against the fender if you choose. I did that for the first 18 months and it held my bike very securely and did no damage to fender. I only recently lowered the rear spool so that it contacts the tire below the fender and I like this position a little better.
My rack is the 2" Super Duty Single rated for up to 75 lbs and weighs 28 lbs. It comes in a reusable shipping box that is nice to store the rack in when not in use. You can put up to 2 add ons onto the single for a total of up to 3 bikes.
I have the optional ramp that makes loading heavy ebikes easier. This is my second rack from 1UP USA and I am 100% satisfied with the racks and the company. 1UP USA racks are lightweight, fold up compactly for easy storage, extremely quick & easy to load & unload, and hold bikes very securely.