This trike currently has the 19" U-shaped support bar and whatever the standard seatpost is (7/8" x ?). This makes for a very low saddle height, and has that big honking saddle. I'd like to replace this configuration with something higher up and a standard saddle if possible. I know about the 21" support bar, and longer seat posts, but this bike does not have reasonable seat stays, so no way to just go to a standard seatpost/clamp arrangement (I think).
So, the question is, does anyone have thoughts, or better, has seen a product, that would let me mount a regular saddle on this support bar/weak seatpost combination? I can get a longer support bar, and longer seatpost. I can change the angle of the support bar, though not the seatpost. I could weld on better seatstays, but with a 7/8" post, it probably still wouldn't be strong enough without something like the support bar.