My parents bought a place in the sticks in FL (near gainesville). Anyway, they met a neighbor of theirs when they moved in - a retired cop who rides cruisers (no robberies in the neighborhood lol). Anyway, he designed and made for himself a gel seat for his cruiser. My grandfather (who stays with my parents these days) is wheelchair bound (only 1 leg), and oft complained of his wheelchair seat discomfort, once when the neighbor was visiting my parents. The nice neighbor - on his own volition - crafted and built a gel pad for the wheelchair seat which helped tremendously. Anyway, I am thinking such a thing could be made for a sportbike, why not? I will try to ask him when I am down there for xmas. Very thoughtful guy I thought.