Inner TubesSplice is always placed opposite the valve, which helps to provide a more balanced tubeFeatures an overlap splice which is stronger than the butt splice used in most othersMichelin Airstop tubes are used by those who want the very bestDUTYHeavy DutyFOR RIM SIZE12?INNER TUBE VALVE STEM TYPE EU34G| TR-4INNER TUBE VALVE STEM TYPE USTR-4 (round base) Center Metal Valve (threaded and nuts)MATERIALRubberMOUNTING POSITIONFront| RearPRODUCT NAMEInner TubeTUBE FITS TIRE SIZE2.50-12| 80/100-12TUBE THICKNESS2.5 mmTYPEOffroadUNITSEach