No. Some people claim they do, but they DO NOT. They make speedway tires that look simular to a trials tire, but they are worlds apart. The speedway tire is very stiff, with a very hard tread. I bought one, never bothered mounting it, and gave it away. There is a guy local to me that works with a Taiwanese comapny called Vee Rubber. He got them to design a 19" trials tire, and most guys I know who run them love them. It's a true trials tire, not a speedway one. that is the only one I've seen though.