My Bionx powered mountain bike has now become a transformer. This is the human powered only off-road form.
And that's in it's Bionx eBike form.
In one form it has no battery or motor. The Bionx cabling, controller and mounting rack stay on the bike. These only add a few ounces to the overall weight. This is the offroad form where it uses knobby offroad tires and can only be human powered. You'll notice that right in the middle, slightly ahead and up of the crank is a cap that goes over the Bionx connector to protect it from debris.
In its other form it becomes a road going eBike. The protective cap gets moved to the bike rack. The rear wheel gets swapped out for the Bionx electric wheel which has a street tire. The cables are reconnected. The Battery is mounted to the Bionx rack. The front wheel is swapped out for one with a street tire. It's now a street configured eBike.
For the anti-eBikers... ha... I've got the best of both worlds! I can work, sweat and get full of mud with the off-roader and I can commute to work without breaking a sweat, and not stink, with the electric on-roader. It's my choice. It only takes 2 minutes to go from one form to another including minor adjustments to ensure the disc brakes aren't rubbing.
PS: Sorry for the transformers movie "theme". I just have a sense of humor.