Thank you everybody for your answers. Yes I should have brought the front wheel to the co-op, but I guess that falls under "would of, should of, could of". It is not the end of the world, my two matching "used" bike tires (both for $ 20) still have the rubber protrusions from the molding process. So now I have tow tires for my mountain bike. Also I supported a local bicycle institution. thanks again for all the answers.