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From: msw@drux3.UUCP (Mike Walpole)
Newsgroups: net.bicycle
Subject: Re: Flat Tire Epidemic
Message-ID: <1312@drux3.UUCP>
Date: Mon, 24-Jun-85 09:33:57 EDT
Article-I.D.: drux3.1312
Posted: Mon Jun 24 09:33:57 1985
Date-Received: Tue, 25-Jun-85 07:45:37 EDT
References: <2051@iddic.UUCP>
Organization: AT&T Information Systems Laboratories, Denver
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>A short while ago I had my wheels trued at a local shop. Good thing
>I did, too, because one of the rims was splitting and had to be replaced.
>My problem now is that  EVERY time I ride my bike (Univega Competizione
>w/ Araya 20C rims, 20C clinchers) I get a flat tire !!

>Both wheels are susceptible, the puncture is on the inside, generally
>two inches from the valve.  Must be a spoke problem, right ?  Or maybe
>the protective rubber liner is bad, or misaligned ?.......

Fisrt of all on 20C rims the rubber rim liner doesn't work.  You should use
velox tape.  More than likely not a spoke hitting the tube but the tube
expanding into the spoke hole.  I had the same problem acouple years ago
when I put on Specialized tires and ultralight tubes. (4 flats in 2 days.)
When I used velox tape in the rim I went 1500 miles without a flat.

Mike Walpole