You find yourself on top of a really tall hill and you find yourself being chased by people who want to slowly torture you for a month until you die. You can't outrun them in time. Your only hope is to ride a unicycle down the hill to outrun them. There are many unicycles but each of them have something wrong with them. One of them have chainsaws as pedals. Another one has long drills in front of and behind the unicycle seat. Another unicycle has a shopping cart for a seat making it extremely hard to pedal. Another unicycle has a jet pack welded in front of the seat and when you pedal it will start burning the seat off. Another one is absolutely fine except you need to stand on your head for the unicycle to work (there's guards in place that prevent you from falling of it). Another one is absolutely fine as well except the frame is made of glass. Finally the last one has an irremovable pair of wheeled anvils chained to it.

Which one would you use to escape those people?