Abstract: A side-actuated braking system using natural foot movements is employed in each of a pair of wheeled, foot vehicles. Each of the vehicles is provided with a braking member including a side-engaging slidable plate, a wheel rotation retardation member such as a caliper, and an interconnection member. The slidable plate is provided at one edge with a row of teeth and is adapted for arrangement on one of a pair of the vehicles with the teeth extending outwardly and opposingly from the foot vehicle for engagement with a similar row of teeth on the other of the pair of vehicles. The interconnection member connects the slidable plate with the wheel rotation retardation member in a manner such that sliding movement of the plate from a first position to a second position actuates the wheel rotation retardation member from a nonbraking position to a braking position.