SIMPLEX

Change Speed Gears, Wheel Axles, Wing-Nuts for Wheel Blocking, Frame Tubing, Double and Triple Pedalling Sprocket Wheels, Ball Bearings, Chain Tensors, Revolving Handles With and Without Brake Handles, Single and Coupled Control-Levers, Pedal Cranks, Chain Carters, Seats, Seat Adjustment Rods and Springs, Rear-Vision Mirrors, Baggage-Racks, Built-In Theft-Prevention Means for Bicycles and Motorcycles