Can you usea a 700x 23 inner tube on a 700x28c?
02-25-06, 12:31 PM
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Do I need a bigger inner tube for a 700 x 28c tire? Most store sell inners that span from 18c to 25c I think??? 
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02-25-06, 12:36 PM
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It'll work OK. Given the choice I'd prefer a tube that was slightly undersize over one that's a little too big.
02-25-06, 12:39 PM
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You'll get by with that tube in a pinch, but you'll likely get longer life out of a tube of the proper size.
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02-25-06, 04:49 PM
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I used 700x18-25c inner tubes all the time with 28c tires and they were fine. Theoreticaly if you get a puncture the small tubes may deflate faster than a larger one due to it being stretched but I didn't have any paticular problems that I can remmember. Using tubes that are slightly to big will make them very hard to fit and greatly increase the incedence of pinch flats on fitting.
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Last edited by AnthonyG; 02-25-06 at 05:03 PM.
02-25-06, 04:54 PM
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I have had 700x23 tubes for the 27x1.25's on my commuter and I haven't had a problem.
02-25-06, 08:51 PM
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I still have my '86 Cannondale SM700 mtn bike. It has a 26" front wheel & a 24" rear wheel. I always carry a 24" tube so that it will fit both wheels. Always opt for a smaller tube, rather than a larger one. I also carry a 20" tube for my Tour Easy (20" front. 700c rear) and it will "fit" both wheels amazingly enough. Just make sure you have the correct valve type.
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02-26-06, 09:34 AM
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Originally Posted by Dr.Deltron
I also carry a 20" tube for my Tour Easy (20" front. 700c rear) and it will "fit" both wheels amazingly enough. Dr.D
02-26-06, 11:24 AM
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Originally Posted by Retro Grouch
I bet that's a stretch.
NOTE; I find most standard innertubes at ACE hardware, $2.19, LBS, about $5.00! You decide!
Dr.D
02-26-06, 11:46 AM
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Originally Posted by Dr.Deltron
YES, it IS! Back in "the day" the gang at my shop decided to overinflate tubes, just for fun. We once got a 20" tube to almost 7'diameter before failure. So, to decrease "stuff" in the seat pouch, I've only carried small tubes. Works great in pinch.
NOTE; I find most standard innertubes at ACE hardware, $2.19, LBS, about $5.00! You decide!
Dr.D
NOTE; I find most standard innertubes at ACE hardware, $2.19, LBS, about $5.00! You decide!
Dr.D
02-26-06, 11:57 AM
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I would try a 20x1 1/8 BMX size and stretch that. Should be narrow enough by the time it reaches 24".
Or see if Terry Cycles can set you up w/the correct size. Buy several if you find some, you can always use them in a 700c tire.
NOTE; NO shop will ever recommend this "stretching" technique, but it has always worked for me!
Dr.D
Or see if Terry Cycles can set you up w/the correct size. Buy several if you find some, you can always use them in a 700c tire.
NOTE; NO shop will ever recommend this "stretching" technique, but it has always worked for me!
Dr.D
