Zefal air profil micro pumpconstructed from lightweight and durable aluminium the air profil micro is zefals most compact pump although only 165mm long it can inflate to 100 psi the air profil micro is light and small enough to fit in your jersey pocket and is presta and schrader compatible the aluminium construction makes the air profil micro pump durable and strong a grooved handle improves grip to aid inflation up to 100 psi a clamp allows the pump to be securely fitted to the valve