Decided on a bike today. I am still about a week from actually pulling the trigger and paying from it (I have a bit of money I didn't know I had which is why I'm doing it now and not next spring). I asked the LBS about a workaround for my daughter's bike trailer and they were 100% on board with doing that and have done it plenty before. However, I didn't think to ask about my rear rack. I currently have a 10 year old rack I painted bright pink for visibility that is strapped to the back of my current everything bike (Surly Cross Check). It's also ridden on the back of my husband's Scott cross bike (which is really fat tires on currently). Zero issues on either. But I've never had disk brakes and I know it can throw a wrench in it.