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Old 10-10-06, 06:57 PM   #1
fadetoblack6902 
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regular length presta valves on deep v rims

I have a pair of deep v rims, and I accidentally bought regular length valve tubes for them. I mounted one, and the valve sticks out enough to screw the lock nut on, with a tiny little bit of extra thread sticking out. It pumps up fine. Is this ok, or should i go get the long valve tubes?
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Old 10-10-06, 07:06 PM   #2
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Sounds good to me. If the tube fits, it fits Also, the nut is not necessary at all, though it can help hold the valve firmly so that it doesn't get overly stressed when using a hand pump that lacks a hose.
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Old 10-11-06, 05:20 AM   #3
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Quote:
Originally Posted by fadetoblack6902
I have a pair of deep v rims, and I accidentally bought regular length valve tubes for them. I mounted one, and the valve sticks out enough to screw the lock nut on, with a tiny little bit of extra thread sticking out. It pumps up fine. Is this ok, or should i go get the long valve tubes?
You didn't specify whether it's your floor pump that fits fine, or your portable pump, or both. I had the same issue as you a while back and learned the hard way that my floor pump fit the short valve stem just fine, but when I flatted out on the road, I found that my Crank Brothers pocket pump wouldn't quite grab the valve stem. I ended up having to call my wife to come and get me.

Anyway, a valve extender should solve any such problem:

http://www.biketiresdirect.com/searc...lts.asp?cat=va

Bob
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Old 10-11-06, 06:36 AM   #4
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Valve extenders convert short valves into long ones: e.g., http://www.icyclesusa.com/catalog/hu...tender-set.htm.
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Old 10-11-06, 07:29 AM   #5
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If using the lock nut, I would be careful you do not over tighten. The tube needs a little play.
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Old 10-11-06, 07:30 AM   #6
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There's the right size valves and there's not exactly. Murphy's law says that you'll discover yours is "not exactly" while trying to fix a flat along the side of the road in the rain. If you can physically get the valve you have now inflated, fine. Just make sure that the spare inner tube that you pack along with you has a longer valve stem.
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