Ian, there are strong rational points of debate about in wheel and central locations for drives. The first vehicle I plan on building will be a tadpole trike with the rear wheel being powered. The drive could be connected to a separate wheel with a chain, like a motorcycle or be in the wheel itself. At this point I think I will build it separate since the losses through a chain are minimal and the fluid connections could be solid tubing with the drive fixed to the frame. It woud also allow the brake to be retained as a backup.
regards
Mech
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