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Intro to the "Pursuit" tadpole trike, a cool new prototype trike constructed by Paul Wright and Dave Holmes of Nottingham. The method of propulsion uses the hands to operate an all-new type of constantly proportional drive mechanism. In reality this means that at any stage in the push-pull process, a given amount of hand movement always turns the back wheel the same amount. And an added advantage is that hand movements don't need to be co-ordinated in the manner of operating the pedals of a child's lever operated pedal-car. Have a look at the videos and see what you think.