Tire liners
I needed to replace a tube today and while in the LBS I asked a mechanic about the various tubes. Out of the blue he started talking to me about tire liners. I get the concept, but never know if someone is selling me a bill of goods, or if he is truly on to something. I've only been riding for a couple of years, and I've heard no one talk about tire liners. Would you all give me your opinions and experiences?
Thanks!