May be used in both Bias and Radial Applications The size marked on the tube may differ from the size needed as inner tubes are made to stretch in order to fit multiple sizes, according the manufacturer this tube will fit on the following tire sizes: 12.4R42, 9.5R42, 11.2R42Features Agriculture farm tube for RADIAL or BIAS tires Made with high quality rubber Made to stretch to fit multiple sizes TR218A air water 1-27/32 long valve stem See Product Description for Compatible Tire Sizes The 9.5x42 To 12.4x42 Fiestone Fam Tie Tube (T218A) Was Built Fo Fam O Tacto Ties. A Tie Tube Built With Fiestone Eliability This tube is for farm applications and can be use in BIAS or RADIAL tires. Firestone 23 Degree Radial 18.4R42 Tires | Other Features Tube Type: Farm & Industrial, Size: 9.5/12.4R42 Butyl Rubber Rim Size: 42 in. Valve Type: TR218 RubberMaster Plus 9.5/11.2/12.4R42 Inner Tube With TR218A Valve Model 322285 6712965 Description This is a new radial Air-Loc 9.5/12.4R42 multi-fitment farm tire inner tube. It is approved for radial and bias tire use. It is a multi-fit tube that is made to be used in the following sizes: 9.5R42, 11.2R42, 12.4R42, 320/80R42 and 320/90R42. The most common applications are for and farm equipment tires. T Tractor/Implement Inner Tube with TR218A Valve Stem May be used in both Bias and Radial Applications also 9., 5/11., 1/12., 4R42