Need a tube from a company that you trust using the latest technology in rubber compounds? Continental is the global leader in efficient and reduced resistance tires so it only common sense to buy a Continental tube for your mountain bike. Continental tubes are reliable, light weight, and manufactured in state-of-the-art facilities.
I bought 5 of these for my 2 mountain bikes. I put stans no tubes sealant in them and I have not had a flat yet. I still carry my spare tube in my backpack. I ride downhill, cross country in pretty rough country In eastern Washington. I recommend these tubes. Get extras, so if you get a flat, just change your tube and fix the flat when you get back home. I plan on ordering more on my next order from price point because the price is the point.