Thanks for the appreciation, Brandon. We can do anything around that problem, I think.

I have my own assessment too how to address that matter:

With the shell cover on, the seat is more stiff and durable than standard seat. The shell can be split in half, stacked, and then stowed away into a backpack. Without the shell, I suggest to design a built in, swiveled up reinforcing bar in trapezoidal loop, with the longer-side ends to be easily locked into place to the sides of the bottom seat. Again with this adjustment, this would make the seat much stiffer than regular seats. In swing set-up, we can use the round reinforcing bar as torsion spring to stiffen and limit the swing movement.

With simple hooking up by interlocking setup and self-locking incline, I believe this would be easy to be installed by anyone, employing the lock keys to lock/unlock and split open the shell as the only tool for interchanging. As the purpose of the cover is for safekeeping, using the keys would be fine.

The female setup is not really for women only but for everybody to take pleasure of a more padded seat than regular male seat, good for level roads and long journey. The male setup is for women too, especially in steep inclines, to quickly transfer their weight behind the seat without the wider setup somehow restraining it.

The only challenge here, I believe is the journal bearings at the ends of the levers. I think we need it locked forever by rivets, so that there is no worry of loose bolts. The configuration I presented is like a 2D parallelogram when viewed along its axes. The challenge here is to stiffen the two sides from torsion and break loose from the rivets. But anyway, this is a great challenge to solve as no one have come out of a sturdy setup employing this configuration, as evident of what is out there in the market.

It is really easy just to switch out regular seats. But that would be bulky to carry around, not to mention to carry along the seat posts when the rider opted the regular quick-release locknut dismounting. Also, a single long journey would entail different terrains that would make the adjustable seat a better alternative.

I also opt for fixed extended position of the pads in the female setup so not to burden the rider of adjusting the pads and to stiffen the design as the pads are locked into place by cleaving perfectly to the upper surface of the bottom male seat. But the pads will be easy to slide without locking anything.

BTW, I have a 3D model already if you need this, so the designers can jump start ahead with the necessary design iterations.

We can add other configurations too, if you wish. Like installing electric generator in swing setup, with the dangling nose pads as direction/braking indicator lights perhaps or for illumination, etc. There are much more exciting configurations, I recon. It’s up for the Grabcad team to implement:)

intriguingly awesome...

good idea