What size tires do you want to use? What tires are affordable and available?
Maybe you should start there and have wheels made to suit.
doesn anybody run 19,5 and post pictures? because I thought they don't fit.
So I've measured the rear drums, sorry in cm, but I'll share the inch sizes
the circumference of the widest part of the drum is 130.1cm, which calculates to 51.2" the diameter being 16.2"
But there is the raised lip at the end; the curcumference there is 136.6cm which calculates to 53.8" the diameter being 17.1"
normaly you would say 19.5" vs 17.1" is no issue, but wheels are not a tube, there is usualy a "bridge" for added strength, which has a way smaller diameter.
thus..does it fit or not?
pictures of 19.5s on these drums would be highly apprediated.