I get you! I hadn't simplified to that when I thought about the belts. I was trying to figure in the spring tension like YTs idea. They would have worked backwards to that idea and if the peg was pulled, the window would go down. The rollers were too big and I nixed the idea. But I do still have plenty of belt material. I have to think ahead about things like that, he my riding partner on most trips and he's really good in a vehicle, but having him find an un-announced exit on his own would not be good. He's lived his life in the woods and does not understand the dangers of rolling objects. Getting out in town would lead to his early demise.