Whats the best way to clean a preloved stroller?

Any part of the stroller that's fabric, if it's detachable, I'd definitely give it a good soak, wash and disinfecting. I know some parents would just sun the stroller out if there are no visible stains or smells and use a spray disinfectant after that (Febreze works too). As for the wheels and the metal parts, a wipe down with hot water and soap should suffice. I wouldn't worry too much about the wheels and metal frame too much, they are bound to get dirty again anyways.