700 x 25 tube in a 700 x 23 tire
06-11-08, 03:54 PM
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700 x 25 tube in a 700 x 23 tire
700 x 25 tube in a 700 x 23 tire
I was in a pinch and all I had was a 700 x 25 tube, my tire size is 700 x 23, is this bad? doesn't seem ideal but doesn't seem to far off
I was in a pinch and all I had was a 700 x 25 tube, my tire size is 700 x 23, is this bad? doesn't seem ideal but doesn't seem to far off
06-11-08, 04:16 PM
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You're exactly right: not ideal but not too far off. As long as you didn't pinch the inner tube under the tire bead you'll be fine.
Given my choice I'd prefer to use a slightly undersized inner tube than a slightly oversized one.
Given my choice I'd prefer to use a slightly undersized inner tube than a slightly oversized one.
06-11-08, 05:28 PM
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When i had a flat i only had a 38 tube, and i put it on my 25 wheel. It's been like that now for close to year.
06-11-08, 07:41 PM
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Numbers only get you so far, it's what happens when you put the tube into your specific tire that counts.
06-11-08, 07:56 PM
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Its probably a tad thicker after being inflated inside the tire. You may find it more durable! I ran 28's inside 25 tires and got a pretty good life out of the tube.
06-11-08, 10:48 PM
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It's probably going to catch fire and explode.
06-11-08, 10:59 PM
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06-12-08, 09:00 AM
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It seems that the general consensus is clear but I might as well add my two cents for statistics' sake. I agree you should be absolutely fine with a 25 tube inside of a 23 tire, as long as you follow basic tire replacing methods (even bead along rim, no pinched tube between tire + rim, etc.).
06-13-08, 01:39 AM
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I always end up buying something like 700x20-28c anyway, and always seems to be fine
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i jam my thumbs up and back into the tubes. this way i can point my fingers straight out in front to split the wind and attain an even more aero profile, and the usual fixed gear - zen - connectedness feeling through the drivetrain is multiplied ten fold because my thumbs become one with the tubing.
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06-13-08, 07:46 AM
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I'm always surprised by how uptight everyone gets ove tubes. Blow one up out of the tire and you realize how much they can expand and 'adapt'. I have 26X1.75 thornproof tubes in my 700x37 tires on my bad weather commuter and they have been bulletproof for over 2 years. If it can be stuffed or stetched in w/o pinching it will be fine.
06-13-08, 03:23 PM
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I'm always surprised by how uptight everyone gets ove tubes. Blow one up out of the tire and you realize how much they can expand and 'adapt'. I have 26X1.75 thornproof tubes in my 700x37 tires on my bad weather commuter and they have been bulletproof for over 2 years. If it can be stuffed or stetched in w/o pinching it will be fine.
06-14-08, 01:04 AM
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On my hybrid I changed from 700x38c to 700x25c tires. In so doing, I managed to rip the stem off the new 25mm tube for the rear tire. And through poor planning I didn't have another one on hand. I managed to cram the old 38mm tube into the 25mm rear tire, and it's still there today (months later).
It was a monumental task getting the Armadillo with wire bead onto the rim with such a big tube inside, but it finally worked out. Next, I expected to flat out in no time, or maybe blow the tire off the rim. But no, it worked out fine. I'm sure it's less than ideal toting around the extra weight, and if I ever had to change a flat again I would just substitute in a new appropriately sized tube, but for now it's ok.
It was a monumental task getting the Armadillo with wire bead onto the rim with such a big tube inside, but it finally worked out. Next, I expected to flat out in no time, or maybe blow the tire off the rim. But no, it worked out fine. I'm sure it's less than ideal toting around the extra weight, and if I ever had to change a flat again I would just substitute in a new appropriately sized tube, but for now it's ok.
06-14-08, 01:29 AM
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I've done this several times on even smaller tires. No problem. Just make sure you check for the tube getting pinched by the tire before you pump it up.
