Topeak joe blow sport ii bike pump the topeak joe blow sport ii bike pump allows you to get your tyre pressure sport on thanks to the thumb lock mechanism and clearly visible gauge while a padded elastomer grip improves comfort featuring a twin had hose for a variety of valves it also comes supplied with ball and air bladder connectors bike pump freestanding thumb lock mechanism gauge padded elastomer grip twin head hose ball and air bladder connectors supplied top