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THE LOGIC OF TRIKES an outsider's viewpoint by Andre Jute
On 3 June, 00:35, Andre Jute wrote:
THE LOGIC OF TRIKES an outsider's viewpoint Considering a lightweight trike like a motor vehicle is incorrect. The major problem for which you have identified is that the angle from the centre of gravity to the line between the outer front wheel contact and the rear wheel is too steep. Other than making the track wider or lowering the rider to which you dislike on both counts, there is the possibility of laterally moving the rider. A wide flat seat may be provided with grab rails to the side. The rider would need to relocate and brace for the corner using the outside grab rail. The simplicity of the system relies on the alertness of the rider for all cornering over modest speed. The steering bar itself could be used as the bracing just as it is when a racer laterally shifts the bicycle to enable pedalling through a corner. An alternative to the above is a relocating front axle, not nearly so good, but saving constant attention. The idea is that upon turning, the 'axle' is moved outwards so setting up a 'lean' in addition to what the rider does with his upper body. The most satisfactory system will probably consist of the relocating axle, relocating seat plus body lean which is partially induced with an automatic seat relocation. I'm thinking that seat relocation may be up to 200mm, axle at 140mm plus a further body lean at the shoulder of 200mm. If all this was done with a Jute height seat with a 6oomm track, would this enable sufficient cornering angle on a typical adverse camber? If the answer is possitive then the design may be considered. Else I'm thinking the track just has to be wider. If it could be done along my principles then how far could the machine be narrowed? Making the machine less than 500mm is some accomplishment when coupled with a high cornering speed. |
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