Trans American 11L/12.5LR-15/16 Inner Tube with TR218A Valve Stem A quality Trans American combination 11LR15/16, 12.5LR15/16 inner tube. TR218A air/liquid valve stem, is common in agricultural equipment. For use in radial and bias ply tires. Fits 11L15, 11L16 12.5L15 and 12.5L16.