Just a shoutout to discount tire for ordering tires for the 450. I kept the 145s on the front and 175s on the back just like they came from the factory. Not only do you get better mileage, but I'm hoping that if people order them from time to time they will stay available for those of us looking to keep the Smarts relatively original! It only took them a couple of days to get them in. They had to get a little creative to jack it up (hand jacks) because the usual lift was too big!