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#1
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Has anyone Stretched a 20" tube to fit a 24" wheel?
Has anyone ever thaught of stretching a 20" tube to fit a 24" wheel? Its highly common to size a 29er tube to a 36er wheel. Does anyone have some sort of guide on stretching tubes? My MUni is a beast and I figured ti was time to put him on a very strict diet Clichée came to me at 12:13 am on X-mas eve. So I typed it up on my Ipod so I dont forget. Happy Holidays! Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
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#2
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Has anyone Stretched a 20" tube to fit a 24" wheel?
I have never tried stretching tubes. To stretch a 20" tube to fit a rim for a 24" tire you are only asking for an additional 20%. To stretch the 29" tube to fit a rim for a 36" tire you are asking for an additional 24%. If anything, it should be easier to do. It certainly is a cheap experiment. I question the weight savings. A Coker tube is very heavy so the weight savings are substantial.If you are using one of the thick, downhill tubes in your 24", just going to a standard 24" tube might save you enough in weight already. -- harper -Greg Harper *jc is the only main man. there can be no other.* "Natural logs are what you ride on a Mun'e'." - kevinalexandersmith ------------------------------------------------------------------------ harper's Profile: http://www.unicyclist.com/profile/426 View this thread: http://www.unicyclist.com/thread/75031 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#3
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Has anyone Stretched a 20" tube to fit a 24" wheel?
I think it's gonna be a tough fit. There is quite a bit more rubber to stretch in a 29" tube than there is in a 24". If your goal is to drop the weight a little I think a lightweight tube in the right diameter would be better. You could try a cheap 25x1.5-1.75 tube. It should only cost three bucks, and it would be lighter than a tube made for a 2.5-3.0 tire. -- jtrops ------------------------------------------------------------------------ jtrops's Profile: http://www.unicyclist.com/profile/17262 View this thread: http://www.unicyclist.com/thread/75031 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#4
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Has anyone Stretched a 20" tube to fit a 24" wheel?
From my experience, stretching a 26" tube to fit a 27" wheel(bicycle) was quite difficult. Later I remembered that for every inch of diameter, you have pi inches of circumference. That means that my 26" tube was 3.14 inches shorter in circumference than a 27" tube. That also means that with a 20" tube, you will have over 12" less tube to work with then if you used a 24" tube. I wouldn't even try, but maybe it is possible. -- Biggestbtc ~Benjamin Unicycle For Christ ------------------------------------------------------------------------ Biggestbtc's Profile: http://www.unicyclist.com/profile/18333 View this thread: http://www.unicyclist.com/thread/75031 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#5
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Has anyone Stretched a 20" tube to fit a 24" wheel?
harper;1157042 wrote: I have never tried stretching tubes. To stretch a 20" tube to fit a rim for a 24" tire you are *only asking for an additional 20%*. To stretch the 29" tube to fit a rim for a 36" tire you are asking for an additional 24%. If anything, it should be easier to do. It certainly is a cheap experiment. I question the weight savings. A Coker tube is very heavy so the weight savings are substantial.If you are using one of the thick, downhill tubes in your 24", just going to a standard 24" tube might save you enough in weight already. Oops. Sorry. You're asking for an additional 25% in this case so it's about the same as the 29er stretch. I still agree with jtrops that a lightweight 24" tube would probably be effective enough. -- harper -Greg Harper *jc is the only main man. there can be no other.* "Natural logs are what you ride on a Mun'e'." - kevinalexandersmith ------------------------------------------------------------------------ harper's Profile: http://www.unicyclist.com/profile/426 View this thread: http://www.unicyclist.com/thread/75031 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#6
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Has anyone Stretched a 20" tube to fit a 24" wheel?
I've stretched a 20"x2" tube over a 24" muni rim in order to tubelessify my muni; it was a bit of a tight fit, and I must confess to half expecting it to go BANG as I inflated it to seat it properly. It wasn't too difficult to get on but even at low pressure it looked strained and a bit thin in places; I don't think I'd have liked to ride on it (assuming it could have been inflated to riding pressure in the first place!) Get some sealant and go tubeless instead, it's awesome - no more punctures, lighter, and much better bump-absorbing properties... Phil -- phil "Cattle Prods solve most of life's little problems." ------------------------------------------------------------------------ phil's Profile: http://www.unicyclist.com/profile/915 View this thread: http://www.unicyclist.com/thread/75031 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#7
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Has anyone Stretched a 20" tube to fit a 24" wheel?
UniKid2;1157037 wrote: My MUni is a beast and I figured ti was time to put him on a very strict diet This sounds like a diet for a flat tire. I recommend trying the tubeless route, or shopping for lighter tubes. Regular 24" tubes don't weigh that much in the first place so it's not a great place for savings. You could save a lot more rotating weight by choosing a lighter tire and/or rim. -- johnfoss John Foss Email: "jfoss" at "unicycling.com" -- www.unicycling.com ----------------------------------------------- "False facts are frequently formed from figures fabricated from fear fired fiction." -- Harper ------------------------------------------------------------------------ johnfoss's Profile: http://www.unicyclist.com/profile/832 View this thread: http://www.unicyclist.com/thread/75031 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#8
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Has anyone Stretched a 20" tube to fit a 24" wheel?
harper;1157042 wrote: I have never tried stretching tubes. To stretch a 20" tube to fit a rim for a 24" tire you are only asking for an additional 20%. To stretch the 29" tube to fit a rim for a 36" tire you are asking for an additional 24%. If anything, it should be easier to do. I don't know that it scales. I tried using an 18" on a 20" freestyle rim once--only ~11%. Everything seemed okay, but then it exploded while I was getting ready to go ride. -- phlegm ------------------------------------------------------------------------ phlegm's Profile: http://www.unicyclist.com/profile/8382 View this thread: http://www.unicyclist.com/thread/75031 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
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