alt Hacker NewsThey've done a lot of work it looks like to put in user level adjustments everywhere they can but to tweak the parameters on the frame page I don't see a great way to replace that. The curve it's tweaking is setting the angle between the legs and the seat already.
Yeah I went through the build your own UI after your last reply and it looks like a pretty complex bracket there for adjusting the angle of the seat back. From the look of things it's an adjustment versus another bracket.
It looks expensive, but I suspect that not being able to change your mind after you order is awful. Anything from muscle gain to tweaking your back probably makes you want to adjust your seat a bit. So maybe it's worth however many dollars that takes out of the $1k budget to be preserved in the design.