A nozzle for seating a tubeless tire on a rim using pressurized gas includes a coupling neck configured to accept the pressurized gas from a pressurized tank, a choke point adapter connected to the coupling neck and a nozzle body configured with a nozzle output. Pressurized air introduced into the coupling neck pass through the nozzle and exits the nozzle output in a burst of the pressurized gas that is directed between the tubeless tire and the rim to inflate the tire. The choke point adapter has a chokepoint surface with a chokepoint angle of sufficient angle to aid in reducing the recoil of the tubeless tire seating device.