820x120 Inner Tube
A dedicated Blockley 820x120 size, exact dimension butyl inner tube, with nickel plated valve stem looking as in period. Nothing is as good or wholesome as what Blockley produces, because this tube is only for one tyre size only, 820x120 . We are end users of these tubes ourselves which is why we ended up having to make them. Not to be confused with anything else available.
Blockley produce one inner tube size for each tyre using our own dedicated tooling. The super thick Blockley 820x120 inner tube is sized for the 820x120 Blockley tyre, and this tube is only for this tyre size as it should be. But the big companies making inner tubes for profit don't understand this. That is why Blockley has also had to produce inner tubes for the tyres it makes, rather than be able to source tubes. Blockley products are the best you can buy, and cost no more (and often less) because we sell direct to the end user, without the added layer of the Classic tyre Wholesalers needing to add large margins to make it worth their while to sell.