Re: A new shift concept for the engineers....
Interresting concept.. As i see it the weak link is the derrailure, even the beefiest ones are weak so to speak and it wouldnt hold up for the forces generated from the engine.. Another thing is that when you shift gears on a bicycle the derraliure operates better if you dont load the pedals, you ease of a bit until the chain pops in place.. Try to shift gears while peadling up a steep hill and you'll notice the difference. So shifting under power could be problematic..
And to my knowing there are no left side mounted derrailures, scratch build maybe?