Dahon Bullhead Folding Bike LockJaw folding technology turns this sleek mini bike into a compact folded package Dahon Axis stem allows easy adjustment of stem height and reach  the bike adapts to the rider, not the other way around BioLogic PostPump  high capacity pump integrated inside the seatpost means youll never be caught without a pump Super stiff DualArc frame design can take on punishment from the worst roads and potholes Plush Schwalbe Big Apple tires supply 2 of suspension and have some of the best puncture protection available