Will a 700x28/32c tube work okay in a 700x33c tire?
09-16-14, 10:13 PM
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Will a 700x28/32c tube work okay in a 700x33c tire?
I am new to cyclocross and my tire is a Maxxis Mud Wrestler sized 700x33c. My LBS carried tubes that didn't exactly match - 700x28/32 tubes. I bought two thinking they were close enough. Will they work okay or am I really increasing my chances of a flat?
09-16-14, 10:33 PM
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09-17-14, 04:56 AM
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They will work fine. I doubt you will increase your chance of a flat. The tire protects the tube... or should.
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09-17-14, 08:11 AM
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Yes, they will work fine. No, you won't have an increased chance of flats. 18/23mm tubes will work just as well without any appreciable increase in flats.
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09-17-14, 11:26 AM
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^^^^ This. I've been using 18/23 tubes (which I buy in bulk for my main rides) in the 27 x 1-1/4" tires on my beater for years.
09-17-14, 12:47 PM
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Rubber stretches. One mm of stretch is probably less than the accuracy in the sizing of the tire OR the tube.
09-17-14, 01:37 PM
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You'll put it on.....
start to inflate it.........
keep going.......
then....
NOT. It'll be fine.
Welcome to bikeforums.
start to inflate it.........
keep going.......
then....
NOT. It'll be fine.
Welcome to bikeforums.
Last edited by delcrossv; 09-17-14 at 01:41 PM.
09-17-14, 01:45 PM
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I think I pointed this out before but if the tube is a lot smaller than the tire, patches don't work very well because they reinforce something that needs to stretch. However it's not a problem for the OP.
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09-17-14, 08:52 PM
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I hear a lot of good things about latex tubes for cyclocross. You can run lower pressures with presumably lower pinch flats.
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