Use a knife to trim a 45 degree bevel on the edge of the valve stem hole, This with greatly reduce the amount of damage around the stem, Cloth rim strips will also reduce damage to the rubber when the hole is cut too small and covers the metal around the rims valve stem hole. I to excessive pressure in my tubes and once in a while I do shoot a valve stem out of the rim. At 140 PSI things can go bad fast at 160 they do go bad fast.
-----Original Message----- From: Ryan Sharpe sharpe@sacbikekitchen.org To: The Think Tank thethinktank@lists.bikecollectives.org Sent: Fri, Aug 5, 2011 6:51 pm Subject: Re: [TheThinkTank] patching with pieces of tube
I'm impressed. Usually by the time I get to ten or so, the valve stem's only held on by two little threads of rubber...
--Sharpe
On Fri, Aug 5, 2011 at 8:22 PM, bovineoaks@aol.com wrote:
I have had 23 on one tube and 19 on the other tube
-----Original Message----- From: veganboyjosh veganboyjosh@gmail.com To: The Think Tank thethinktank@lists.bikecollectives.org Sent: Fri, Aug 5, 2011 4:36 pm Subject: Re: [TheThinkTank] patching with pieces of tube
Speaking of "10 other patches", whenever i'm giving a demonstration of how to fix a tube, at some point during the demo i usually like to ask the group "What's the maximum number of patches that can go on an inner tube?" and let them hem and haw and shout out numbers for a while before explaining that "If it holds air, it's good. There's no maximum."
On Fri, Aug 5, 2011 at 5:10 PM, Robert McMurry remcmurry@gmail.com wrote:
Andrew and all,
I have done this before usually in some kind of pinch or on a ride and need to fix a large cut or puncture. the most important is to sand both pieces thoroughly over the section to be glued with the vulcanization fluid. It has definitely gotten me to the next town or back to the car when mountain riding before (but I usually replace these tubes after getting out) they may be fine but at that point they usually have about 10 other patches on them in my case and i just take it as an indication to get anew tube. I'm sure i have ridden a month or more on a tire like this though.
Robbie Davis Bike Collective
On Fri, Aug 5, 2011 at 1:32 PM, andrew anyone@breathingplanet.net wrote:
does anyone do this regularly and successfully?
andrew TBR -- _______________________________________________ Thethinktank mailing list Thethinktank@lists.bikecollectives.org To unsubscribe, send a blank email to TheThinkTank-leave@bikecollectives.org To manage your subscription, plase visit: http://lists.bikecollectives.org/listinfo.cgi/thethinktank-bikecollectives.o...
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