In general terms, the steering head is supported by a pair of upper tank loops, one joining the head tube at the top, the other at the bottom, all four tubes joining a cross-member at the front of the seat. Although we were shown two stages of chassis thinking (a bare frame and one carrying a plastic rapid-prototyped engine buck), one resembled popular aftermarket flat-track frames in having a single large downtube descend a short distance from the steering-head, then join a pair of tubes to form a cradle under the engine. A pair of tubes continue the cradle vertically behind the engine, with the swingarm pivots incorporated into them. A bolted-on seat frame carries a minimalist seat with a range of possible fore-and-aft positions. A clearly stated goal of this chassis is to allow the rider great freedom in shifting weight on the bike as needed.