http://www.unicycle.uk.com/shop/shopdisplayproduct.asp?catalogid=647
since the tryall tyre is for natural trials would this make it wear out increadibly fast on concret for urban trials and street? 
Its made from soft rubber like the crepy cralwler so it would wear out faster than a luna would. The koxx riders use them but i guess they get them replaced whenether they wear out. If your into street i theink the luna is the best.