I am a big fan of tadpole trikes. Today I saw my first Sun recumbent trike. It had bolt on axles with low end hub bearings. A single disc rotor in the rear with an added point of drag & resistance. The drivetrain was overall low end, and the upper bar steering forced the rider into a high, slow seated position.

I am amazed such low end stuff is made today. I expect this bike was not cheap....but it was not nice. I see it as a waste of resources.