- Jun 1, 2011
I have a Trek 920 Singletrack bicycle with tubeless tires but both tires have gone flat and I do not f*****g know how to fix them. One won't hold air, and the other tires stem is broken off. What do I do? I seriously don't want to have to buy a new tire. I don't even have the money to do so. They're skinny road bike tires. Any help? Please?!?!