Would one of you guys be kind enough to post some close up photos of how the rear wheels fix to the shaft on a rear wheel drive trike for me please; especially detailed photos of the wheel and hub disassemble from the shaft, but with all of the components in the photo.

I want to build a bolt on conversion kit like the one in the photo below, for a folding Raliegh bike belonging to a friend whose health and mobility are deteriorating.

Any help would be gratefully recieved.

Gareth.