Go to the "Atomic Zombie" website. They sell plans for an electric scooter design that places the battery pack about as low and central as is possible. They also sell plans for an ultra long range electric bicycle that also mounts the batteries centrally. I agree that the weight of a battery pack over, near or inside the front hub might create some interesting handling effects but I for one like the elegance of the design. Don't blame TidalForce for the fact that efficient, light batteries were/are not available so the true genius of their design wasn't fully realized! When and if such batteries do arrive do you want to bet that the TF battery placement won't return?

H