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What’s the difference between a 8v1 and 12v1 tyre valve connector?

Published 10 December 2015 in

There are basically two sizes of tyre valves in use.

8v1 – is the standard Schrader car tyre valve size found on the majority of tyre valves. It is approximately 8mm in diameter.

12v1 – is a large bore tyre valve found on some aircraft and large volume tyres (earth moving equipment, heavy plant, etc). It is approximately 12mm in diameter.