I'm not going to get a chance to compare footprints as the space savers went back to the junkyard where they belong today! I put my MX3 wheels back on, which are 3-4 pounds lighter and 1.5" wider. All I can say is WOW! Coasting, DWL and acceleration are all improved noticeably and my mpgs are going up.
I plan on doing a second round of coast-down testing to see if there has been any reduction in rolling drag and aero drag.
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