A Blockley dedicated 880x120 inner tube. This is a correct and exact dimensioned product for an 880x120 tyre of unsurpassed quality, with a thick wall section made from the best inner tube material butyl so the high pressure air stays in unlike normal rubber, so you are not regularly pumping up. These tubes have a nickel plated valve stem, as all stems were in period. Nothing available made today is as good as what we have produced, especially so as this Blockley inner tube is the only dedicated correct sized tube for 880x120 that is available anywhere. With all other tube brands sold elsewhere, they supply single tube covering a multitude or combination (even referrred to them as "combo") of sizes! The only reason for making the Blockley 880x120 inner tube size (as well as other sizes we make) is that we also make the 880x120 tyre that requires a correct 880x120 tube, and none exist. This tube can also be used in tyre sizes having 25" diameter wheels.

If you look at a Michelin 880x120 tube it is marked for tyre sizes "920x120, 895x135, 880x120, 815x105", which shows what big companies can do to cut costs and give their agents the necessary margins to sell this stuff. Note that this is four very different sizes of tube rangog from 815x105 to 935x135, which is why things don't work properly. Blockley make one tube per tyre because that is how it should be, and of course how things were originally, but this costs more to do. But at Blockley because we produce many tyre sizes we make the tubes in the proper fashion unlike Michelin who do not even make beaded edge tyres! Yet our Blockley tubes, made in the better material butyl, and cost about the same. This can show  you the rip off that is the Classic Vintage tyre and tubes market, and relying on brand name and marketing rather than making the correct item! And why Blockley was started.

At Blockley we make one tube for one tyre on our own dedicated tooling. The super thick Blockley 880x120 inner tube is sized for the 880x120 Blockley tyre, and this tube is only for this tyre size as it should be. But the big companies either don't understand this, or don't care. So that is why Blockley had to end up making it's own superior quality inner tube, and why Blockley products are the best you can buy, because we are also end users of the products we produce. And the reason the Blockleys are competitive in price with the alternatives is because we sell our tubes direct to the end user and garages / restorers without the Classic tyre Wholesaler commissions in between.

This 880x120 Beaded edge / clincher inner tubes have an "on centre" nickel plated valve stem with a length of 75mm (3").