Also trying to find a solid wheel as opposed to spoked, wanting to not run an inner tube if possible. Guess that ain't happening. I can get a new wheel and brake drum cover for about $67, 12mm diameter axle, use the drum cover sans the guts as a cover and function as needed spacer as well. Found a Michelin rated for 75mph but is tubeless, not sure about running a tube in that. I've see some small spoked wheels go tubeless by using the rubber strip and a load of sealer, thought it kinda messy and maybe not a secure application to prevent flats. Oh well....still looking!
