I was told there are many aftermarket wheels avail that are tubeless or hard rubber or foam. Anyone have experience with specific one from either a harbor freight, lowes or home depot.

Can you post links or specs for an aftermarket wheel.

Will a 10x3 with a 3/4 hub work?

I don't believe the axle diameter is anywhere close to 3/4-inch. Measure the axle carefully--this is really important because you need a perfect fit to provide a smooth ride and prevent wear to the wheel bearings.

Good Luck,

Gary

Gary I saw the no flat tire advertised on their site says 19mm ....I thought that might fit cause 3/4" = 19.05mm

Be careful mike....I went thru this already..I would get the correct wheel from Rock N Roller....I almost made a big mistake also....the original R10 like I have (RED ONE) has 20mm axles and the new tubeless wont fit.....the new model (Black One) will fit the new tubeless tires......I have no choice but to keep what I have or buy a new Black R10.