4.10 x 18 Heavy Duty 2.5mm Butyl Tube

Fits tire sizes 110/90-18 110/100-18 120/80-18 120/90-18 130/70-18 130/80-18 4.25 x 18 Tire Extra Thick 2.5mm tubes provides a very puncture resistant tube.  Run at lower pressure for less pinch flats Run longer before needing replacement A must for off-road motorcycle enthusiast DON'T BUY OLD TUBES OUR TUBES HAVE A FRESH MANUFACTURE DATE  Butyl inner tubes are eight times higher in air retention than inner tubes made from natural rubber.  Ultra Heavy Duty 2.5mm rubber Sealed TR4 metal valve stems for long lasting leak prevention