I bought a cheap bike from a chain store being my first bike and all. I really like the bike but the bike tire kept busting for no apparent reason. The chain store just kept replacing it with the same tube and the problem kept occurring. Took it here frustrated, just wanting to ride without a tire blowing, and they replaced it with the correct tube and explained why it kept happening. Has been good so far for several rides. Was in and out in 10 minutes and was quite cheaper than I expected. Very helpful!