We have found with tubes that it is important to use quality brands as having to change tubes mid ride because of failure is a bad experience! Lighter weight tubes are a forgotten inexpensive performance enhancer because it is only a few dollars to save substantial weight that will cost a lot more to save in a tyre. It is that reduction in rolling weight that makes the bike feel faster! Check our Merrick range for economical performance. Also check valve type and length when making your choice as rim depths vary wildly these days.