Re: A new shift concept for the engineers....
The left side sprockets I think are the easy part, the derailer and tensioner is the problem area. Conventional rear derailer/tensionar is no good, because the drive chain is above the chain stay. Conventional motorized bicycle spring loaded tensioners solutions I don't believe will work, because the amount chain slack/play needed to allow switching between such large sprockets. So from where I sit these are two fairly simple problems to solve if we don't focus on trying to reapply what is already out there, I mean we can use existing hardware, but it will have to be in a completely different manner than intended and that to me is the fun of tinkering on my Motor Bike