A thicker radial Blockley superior inner tube marked 175/185-16 which we produced to fit our tyre size 185VR16, made from the best inner tube material Butyl, and to period thickness for reliability. You wuill not be pumping these tubes up regularly as other products you can buy! Note that all Blockley inner tubes come with a high quality metal valve stem cap as part of the price, and not as an extra charge later!

We produce this inner tube because we make a 185VR16 tyre and needed a superior quality wholesome inner tube to suit, made from the best possible material available, Butyl, yet made with the period correct thickness (because so many butyl tubes now made are so thin). This 175/185-16 Blockley inner tube that is only made for a 185R16 tyre and not made to fit variety of other tyre sizes - for other tyre sizes we produce a different tube! This way the tube will not be crumpled up from being too big, and will not have to stretch into the void getting it thin.

In addition to this inner tube, for the 185VR16 tyre size, note we also make an even thicker "600/650x16" tube which many people like, which is available with a rubber stem as well as a nickel plated metal "race" valve stem.