Sorry if this is a stupid question. I have a new 700=4 non deluxe unit. I would love to upgrade my wheels and tires and not be too tall to get into my standard garage door. I have a hard top roof on the machine. When I drive in my garage with the slope up I seem to only have a couple of inches clearance. I do not want to make a mistake and get it too tall. Also what is a wheel space and why do you need them? If the answers on here on the forum I am sorry for asking again. Thanks in Advance!