Highly efficient inflation of tubes and tubeless tires! The JoeBlow Tubi 2Stage makes mounting tubeless tires quick and easy. The innovative Tubi-Head removes the Presta valve core for optimal airflow to quickly seal and inflate tubeless tires - without pressure loss or sealant leaks! Thanks to the 2Stage pump design, the pump delivers high pressure or high volume as needed to quickly and easily fill any size tire. Stage 1 opens both cylinders for huge air volume, reaching 2bar / 30psi with 30% less effort. Stage 2 uses the small cylinder for high air pressure up to 11bar / 160psi. The accurate dual scale pressure gauge delivers precise readings from large volume MTB and fatbike tires to high pressure road bike tires - all with the same pump. The long hose, robust steel cylinder and large, stable stand make this pump the perfect floor pump for all bikes.