Hoosier inflate a tire hoop hangin'

How to seat a big , floppy balloon race car tire's bead on a rim? 'Simply' use vise grips to clamp, suspend, inflate, soap, weight it with kids or a bucket o' water or what ever. Inflate with compressor, or my favorite, a hand bike tire pump. Of course!

See pix in the comments..the tires go on bikes that float.

Done