450/500x19 Race Valved Inner Tube
A Blockley inner tube suitable for tyre sizes 450x19 to 500x19 only. The Blockleyl stems are nickel plated, as they were in period. Nothing available elsewhere is anything like this good.
Metal stems were how valve stems were before the rubber stems came into being. Metal stems have advantages over the rubber stems (see our technical articles on this site) and will always be the choice for people racing and so on. The Blockley range of inner tubes, produced on our own Blockley tooling, with a generous thickness, are unlike anything else available. There is nothing available that we like, which is why we embarked on making our own Blockley superior inner tubes. Not only are they made using the best material Butyl, but they are also thicker than anything else available, as they were prewar. We manufacture this inner tube only for the 450, 475 and 500x19 tyre sizes. So for a 450x18 or a 500x18 we make a separate inner tube because at Blockley we make tubes that fit the tyres, not like the big Classic suppliers preference of having one tube with alot of widths and diameters listed on them. Yet because we sell all Blockley tyres and tubes direct to the end user or restorer, and avoiding the Classic tyre Wholesaler companies, it means the best tubes in the world cost little more than the cheaper made alternatives that these wholesalers supply. And don't forget to fit the Blockley rim bands.