Originally Posted by
jacksbike
I sold these when they were new, and to the best of my recollection you require 2 26 X 1.75 tires and tubes. You will probably have to go to a bike shop to get them. The rims were standard 26 X 1.75, unlike a Schwinn size. If you go to a department store that sells cruiser type bikes with the fat tires, this is the size that you need.
On my Columbia Twosome that I sold last year it had 26"x 1.50 Kelly Safari tires on it and I tried to put a fatter 2.00 tire which was a no go but I was just able to fit a Schwinn typhoon 26x1.75 on it and that was tight with no room for error.