Dunlop HP Cycle Tyre Pressure Gauge
07-02-19, 06:21 PM
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Dunlop HP Cycle Tyre Pressure Gauge
One of the unusual parts in a miscellaneous box of parts I recently purchased is a Dunlop Tyre pressure gauge. I assume it's bike-specific as it only appears to fit presta valves and its gauge reads from 50-140psi. It's also only about three inches long. Kinda neat addition to the portable toolkit.
07-02-19, 06:25 PM
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So cool it hurts. Put a red dot on it for me would you? 
07-02-19, 06:27 PM
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Uber cool addition! I got a Dunlop tire lever from a BF member and had a nice geek moment when I squirreled it away in my Raleigh tool bag. Have you tried it out yet?
07-02-19, 06:37 PM
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@3speedslow just plopped it on a tire tyre and read off about 70psi. It seems unlikely to be terribly accurate, but will still come in handy after fixing a flat.
07-02-19, 06:54 PM
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@3speedslow just plopped it on a tire tyre and read off about 70psi. It seems unlikely to be terribly accurate, but will still come in handy after fixing a flat.
07-02-19, 07:09 PM
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My Zefal HP is probably nearing the end of its life so "hard" is no longer in its vocabulary. (Unless I can find new valve stem washers/grommets/seals for it.)
07-02-19, 09:00 PM
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Funny coincidence, I came across one of these in my tool box a few days ago. It belonged to my dad. Haven't tried it out, but was thinking I should. Probably dates from the mid-70s
07-03-19, 01:58 PM
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Dug it out of the toolbox and gave it a try. Agrees with the Silca gauge at 100 psi.
07-03-19, 02:47 PM
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07-04-19, 08:46 AM
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I'd be looking for one of those, too, but these days 50 psi is about the top of my inflation range! I reached my limit on purchases I'll never be able to use a long time ago.
07-04-19, 11:17 AM
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Edit:. Search eBay for "hpx rebuild". You'll find ~3 sellers of the kit, mixed with some John Deere parts kits. You'll have to compare the stacked height of the new parts to your old set, and trim the slotted pusher the lock arm cams against, to make up the difference in height. It may have been more like 3/8" needed trimming. I think I have an old, un-modified pump kicking around, and can probably dig it out for photo comparisions if need be.
Last edited by cdmurphy; 07-04-19 at 11:24 AM.
