23/10/2015 Updated article – see the new version here
There are several centre motors like the Impulse 2.0 system on the market now. Bosch have recently offered their own pedal assist electric motor for bicycles, with manufacturers such as KTM, HaiBike, Moustache and others fitting it to their new electric models. Even Kalkhoff offer a version of the Pro Connect with the Bosch Performance system this season. But how do the Impulse 2.0 and Bosch systems compare?