Bearing-shafted inflatable wheels on drilled and cotter-pinned solid rod - originally built as a through-the-cabinet replacement for the previous (now dead).  Wood and (axle-to-axle) bungees will now allow me to easily solo-wheelbarrow the new grill from the backyard to the street for next week's night out.  Gotta get some Everett's too to share the flavor.  Happy MPLS to you all!