[Moon_flower]

I actually almost never clean the wheels, I don't find that they get dirty at all because my hams never pee in them or anything, I only do it once every several months, as long as they use it
Just like the house and other stuff, except the food bowl that I wash from the food dust every time it's empty
When I do I just give a good wash with warm water to remove dust, without soap or anything unless there's a pee stain(on the cage base) then I might use a little drop of dish soap