bicycles

Traditionally, bicycle frames were a fixed triangular shape that was intended to be stiff and rigid to resist the forces of the cyclist’s body weight and the surface of the road. Today, there are a number of ‘interactive’ versions of bicycles.
One design includes a triangular shape that incorporates a wire member and two rigid members. The rigid members work primarily with the compressive forces whilst the wire member works primarily in tension, providing some ‘give’ or ‘cushion’ in the ride.
Another design separates the seat from the frame that connects the wheels. The rider sits upon a cantilevered horizontal beam that is designed to flex and absorb the inconsistencies in the road surface. This design separates the riders seat from the frame which absorbs the road vibrations.
Suspension on the wheel forks has also been added as an alternative ‘responsive’ mechanism to soften the ride.