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Roger.Mills(at)btinternet
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 Posted: Tue Aug 15, 2006 8:51 am Post subject: Monowheel Inner Tube |
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Has anyone bought a replacement monowheel inner tube recently that fits properly?
After reading reports on this forum about inner tube blow - outs, given that mine is now over 7 years old, I thought I had better fit a new inner tube - so I purchased one from Europa and tried to fit it yesterday. Unfortunately, I found that the cranked valve stem didn’t fit the wheel hub. Given the shape of the hub casting, the stem would be forced outwards on inflation and the threaded part of the stem would be forced hard into contact with the outer rim – making it difficult, or impossible, to fit a pump connector to it.
On closer examination I found that the outside of the cranked stem on the original tube was 20mm from the surface and the replacement stem was 25mm from the surface. Given that the original didn’t appear in too bad condition, I refitted it and am now looking to find an exact replacement.
The curious thing is that, when I queried this with the factory, Roger told me that mine was the last one of a batch of at least 6 and there had been no other complaints! Yet I am sure that, if I had forced the tube into service, I would be risking a blow out due to an over-stressed valve stem neck/innertube joint. Has anyone had a similar experience and could this be the cause of the recently mentioned blow - outs?
More to the point, does anyone know of a source of 8.00-6 inner tubes with a cranked stem (the outer edge of the crank being 20mm from the tube surface) please?
Regards
Roger Mills
G-BVUV
[quote][b]
| | - The Matronics Europa-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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gcrowder2
Joined: 09 Jan 2006
Posts: 136
Location: Golden, Colorado USA
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william(at)wrmills.plus.c
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| Posted: Tue Aug 15, 2006 8:42 pm Post subject: Monowheel Inner Tube |
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Roger,
Try Watts Tyres; they advertise in most of the flying mags.
Regards,
William
[quote] ---
| | - The Matronics Europa-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Europa-List |
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europa(at)triton.net
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| Posted: Wed Aug 16, 2006 4:22 am Post subject: Monowheel Inner Tube |
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Roger,
We recently got an inner tube from E04. It's working just fine. Our's is
an XS builder A185 with the Europa aluminum wheel, in case that matters.
Jim & Heather Butcher
Do Not Archive
| | - The Matronics Europa-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Europa-List |
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