All Metzeler tubes are made from natural rubber blend and feature heavy-duty construction for excellent service and puncture resistanceFor Valve Stem Types, see page ??? FOR RIM SIZE17?INNER TUBE VALVE STEM TYPE EU34G| TR-4| V1-09-1INNER TUBE VALVE STEM TYPE USTR-4 (round base) Center Metal Valve (threaded and nuts)MATERIALRubberPRODUCT NAMEInner TubeTUBE FITS TIRE SIZE110/70-17| 110/80-17| 110/90-17| 120/60-17| 120/65-17| 120/70-17| 120/80-17| 120/90-17| 130/60-17| 130/70-17| 4.10-17| 4.60-17TYPEMotorcycleUNITSEach