I think one interesting system to investigate would be no switch to change chainring. If you have switches to change up/down then you can allow the coumputery thing to say that the chain angle is enough, it's now time to change chainring and drop the chain to the appropriate sprocket.
I think one interesting system to investigate would be no switch to change chainring. If you have switches to change up/down then you can allow the coumputery thing to say that the chain angle is enough, it's now time to change chainring and drop the chain to the appropriate sprocket.