I made a template from cardboard for the area I wanted to block, to keep the heat from the rear cylinder keeping my thighs from getting fried. Then took the cardboard templates to the local cobbler and had him cut me a 1/4" thick piece of leather for each side of the seat. I drilled holes in the leather so I could wire tie them to the frame. I also put a kitchen hot pad under the seat and blocked the hole that leads to the rear cylinder area. All of this has helped keep me cooler.