they make "radial" tubes, so there must be "tube type radials" .... but with rims in good condition tubes shouldn't be needed .... I'm with Nix, I've been running 700R15LT Yokohama, and no problems without tubes
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics
