Lifeline airblast tubeless tyre track pumplifelines airblast tubeless tyre track pump enables you to pop inflate tubeless tyres onto the rim via stored pressurised air in the separate chamber in order to do so you need to have the pump valve closed and then pump up to 240psi into the chamber and then release the valve this track pump is made of durable alloy and features an auto select head that is compatible with presta and schrader valves and an easy to read top mounted pressure gauge featu