Hi. I recently bought a new KH36 to replace my older one, and the new unicycle shipped with a torture device called the ‘KH Fusion Zero’ seat. I tried it a few times, logging maybe 40 miles before I finally gave up and put on a new Freeride. I’m told that every butt is different, so maybe your butt will be happier with the new style seat. If you wanna try it, PM me and we’ll work out the shipping details. If I don’t hear from someone in the next couple of weeks, I’ll prolly just pitch the Fusion in the trash when I clean out the garage.