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Originally Posted by Chris is me
Interesting idea and nice thinking outside the box.
The first issue I can see is with drive chains - as the front wheel articulates, will the distance between sprockets change? This changes how much chain needs to be between them and throws chains out of tension.
A solution is to chain your pivoting member to a sprocket attached to the actual pivot point - this way the distance between any connected sprockets does not change.
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I believe that he intends to take care of the change in chain length with the pneumatic system if I understood his design correctly. This is definitely an interesting idea and might also work on larger obstacles such as the bumps from last year with the correct placement of chains.
Definitely a nice and a good workaround for larger steps.