StreetSurffer Bike -- 5 wheels -- like a skateboard

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An Australian firm has invented a five-wheeled bicycle that it says rides like a surfboard.

The StreetSurfer has a traditional frame and rear wheel - but four front wheels.

And the makers claim having four points of contact at the front means the bike handles in a completely different way.

Those who have tested out the StreetSurfer report improved steering, cornering and front wheel tracking.

They compare the ride more to surfing or snowboarding than a BMX or mountain bike.

The increased traction also allows the rider to lean over further while the unconventional suspension is said to make trick jumps easier.

Gyrosheel - learning to ride a bike

Gyrowheel Gyroscopic Bicycle Wheel Will Eliminate Training Wheels | Gizmodo Australia

Gyrowheel Gyroscopic Bicycle Wheel Will Eliminate Training Wheels

Bike Air Bag

YouTube - Cool Bike Airbag

Cool Bike Airbag

Shape Memory Polymers

Shape memory polymers and textiles

Shape memory polymers (SMPs) are smart materials that, as a result of an external stimulus such as temperature, can change from a temporary deformed shape back to an original shape. SMPs are finding an increasing use in such areas as clothing where they respond dynamically to changes in heat and moisture levels, ensuring greater comfort for the wearer. Shape memory polymers and textiles provides an authoritative and comprehensive review of these important new materials and their applications.