Trans American 5.50/6.00R15/16 Inner Tube with TR15 Valve Stem Quality Trans American combination 5.50/6.00R-15/16 TR15 straight valve stem fits most commercial and agricultural applications. For use in radial and bias tires. Fits 5.50-15, 5.50-16, 6.00-15 and 6.00-16 tires. Perfect for use in front farm/implement tires.