These tires are Nanco 21X12X8. They are slick ATV tires designed to be ran at about 5psi. I paid $33 a piece for them. They are mounted on 8" ATV Douglas wheels that are less than $50 a piece. Kitfox originally sold these wheels and disc set up with their kits for years. Anyways I know 21's are pretty tiny to most of you but on a plane the size and weight of mine they probably about the same as having 31's on a Supercub. I'm going to have to learn how to land the thing again. I'm still waiting on parts to finish up the project but it should be done soon. Here's some teaser shots of the tire package.





I had similar, maybe the same, on my Kitfox 1, I remember them being huge, for the day.