Derek and I went to watch the British Human Power Club racing at Shrewsbury Sports Village yesterday. There were many interesting machines on the track including this pedal and hand cranked trike. It’s a homemade design which presumably requires quite a lot of lung power if all limbs are functioning!
We also saw Tim who joined the google group recently. He’s currently looking into crank shortening options for his Trice QNT to better match the differences in his legs. My Brompton has a variation of this called a swinging crank which I bought from Highpath Engineering about 4 or 5 years ago and is still working well. They do a number of crank and pedal adaptations as well as machining chainrings.
We spotted a Mike Burrows’ Windcheetah with a Schlumph Speedrive fitted too. There are a number of Schlumpf drives available to increase gear range for different situations and I’ve often toyed with the idea of tidying up my triple chainring on the Brompton with one. However, the mechanism to change gear relies on tapping buttons with both ankles meaning I can only change up or down – not both. The owner of the Windcheetah said the designer, Florian Schlumph, is very helpful so I’m about to write to him and see if he has a solution for the uniped 😮