This particular build uses a double A-arm setup that keeps the axle of the wheel near parallel with the ground throughout its range of travel. The trike started off as a standard mountain bike.
But for a second, nearly every manufacturer built and sold a trike designed for off-roading. And, usually, they'd be powered ...
So I built the Tower Trike as a safer alternative to your ride. I Googled the largest motorcycle that you could possibly build and still call it a motorcycle. And we could come up with 11,000 pounds.