The seat post falls off very easily no matter how I tighten it. I got knocked down a few times and nearly blew a tire. I was able to drill a hole and put a bolt in the post and the problem seems to be resolved. All in all I think I got what I paid for. You're not going to get a quality product for $60, but if you have the tools to fix it, this could be a good way to see if you want to learn how to ride a unicycle without spending a lot of money.