Frame steel or aluminum with folding mechanism, fork will be change to threaded with cantilever bossed welded on with linear pull brake rather than drum in photo.  wheels 20" nut on axel which is threaded.  chain adjuster will change to roller or removed, frame weight capacity 250-275 Lbs., rims aluminum, stainless steel spokes, aluminum rear hubs.  Frame will be changed to a two piece design rather than one piece in photo.
Coaster brake shown, We will want a three speed coaster brake version as well
Rear basket sized  20 1/2" x 15" x 9", Rear axle width 29", prefer folding basket that sides fold down.
Folding hinge mechanism with locking safety pin on bottom
Saddle 12 1/2" wide well padded
Quick release seat post clamp
Handle bar stem with quick release like in photo
We prefer frame shape on main tube similar to trike above, Note bosses on down tube for three speed cable, Note Roller for chain, Note fork threaded with cantilever bossed and linear pull front brake, Note seat post quick release
Recumbent 21 Speed Trike with mesh back seat
These two manufactures are both building a trike like what we are looking for.  High mesh back seat with thick gel bottom, 21 or 24 speeds