Originally Posted by
Koyote
The only thing I can add is an observation about the 1up rack that is pictured above: the swingarms that hold down the wheels are entirely made of metal -- aluminum, I suspect. Sturdy and light, but not fender-friendly
It seems 1UP has addressed this situation with a couple new accessory products in recent months. They now have a Wheel-Stop and a Fender Cushion. While I've not personally tried them it seems you use the wheel stop and normal swing arm to lock the front wheel in place, then a strap (and maybe the fender cushion) for the rear wheel.
More info:
https://www.1up-usa.com/product/wheel-stop/ and
https://www.1up-usa.com/product/fender-cushion/