Hi, I have a Bosch motored Haibike with a dongle - Its reasonably fast but I want to use it off road as a pace vehicle for cyclists so it needs to be able to hit 32-34 mph without massive effort. Is it possible to get any more out of the existing motor or is it possible to have a hub motor that will kick in at 28mph and take it to 34mph for short periods on a throttle.