[Einheitsgröße silver]

The extendable hose puts less strain on the valve. Our Presta only screw-on head sits on a short extendable hose to provide more options for the position you are pumping from. Are you nervous about unscrewing the valve when removing the pump? Enter one of the fantastic features of the Core Slim: the Presta Valve Tool. Simply loosen the tool from the back of the pump and tighten your valve before screwing on the hose. With a narrower and slightly longer body than the core pump, the Core Slim is a great choice for inflating 700c tires at higher pressure.