Alright, here it is, GSX-R forks and RS250 swingarm mounted with a YZF-R1 shock and MC17 wheel on the rear for now. Just a mock-up, so none of the stuff is really tightened into place

The fork install was a breeze, the modified R1 triple fits the NSR frame quite perfectly with the non-standard bearings, only needs the stops to be cut off and a seal to keep the moisture out on top figured out.

Swingarm needed some spacers to be centered, added 5 mm on the non-chain side, and used an old 6202 bearing on the chain side, then tensioned with the normal tensioner.

The R1 suspension is more questionable. Had to shave 5mm off the top of the shock to mount it to the frame (because, of course, Honda used 2 different dimensions for the top and bottom), and had to flip the triangle around; otherwise, it would interfere with the link mount on the frame. The angles are questionable, and it looks like the bike is a bit high, but the suspension seems to do suspension things at least.

The MC17 rear wheel bolted right on with the MC16 chush drive and caliper support, just needed a weird 300mm axle