I was calling other shops for a friend looking for a Rhyno-Lite Stan's strip. I tried big Bay Area chain shop, and I received a mini lecture on why they did not carry Stan's. He first said it doesn't work with all tires (true), and it was difficult to install (not true), so they chose not to carry them. I didn't like hearing a parroted opinion, and I did not bother to mention how I use Stan's myself. But I thought it was interesting a big chain of stores would not carry a very popular product.