The bontrager flash charger tubeless ready track pump is a fast and simple easy of pumping tubeless ready set ups the pump is high quality and although the effort did increase with the pressure the pump feels secure and consistent all the way to 160 psi the pump works through two different chambers one pumping system pumps air into the larger barrel which is stored and once you need to inflate your tubeless tyre you can do it in a press of a button the 160 psi charge sealed up a huge 29er t