I keep seeing moto people go huge fmx and i thinks to myself. Dh riders don't sit down all that much. Seats are small and I often hit my ass on the tire. why not have a standover type of a deal that uses the seat post and covers the tt and some of the tyre. I'll work on a sketch tomorrow. But i'm thinking that since you have alot of different bikes with different wheel paths that there could be two little stabilizer arms that move the last segment of the standover up and down depending on the wheel path.