[mike42]

I bought a set of Coker radials a couple years ago and have been using tubes.

Sunday morning the rear was flat. I took it off and see nothing protruding from the tire that would cause the flat.

I read here a couple years ago that there are some type of Valve Stem Protectors that keep the tube from moving and pinching which causes air leaks.

I don't know at this point if that is the cause, as the tire store will not open for an hour.

Lastly.....could I use tubeless with the "original" rims with those 6:00 radials ?

Thx....Mike