Inner tube

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09-03-17 | 04:07 PM

nickg01

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Inner tube

I have a 28 x 2.125 or 700 x 45c tire. Will I be okay to run a 27.5 by 2.125 inner tube until I can get the proper inner tube?

09-03-17 | 04:24 PM

Bill Kapaun

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Joined: Feb 2007

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From: Mid Willamette Valley, Orygun

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds. 2019 Giant Explore E+3

The ID is about 1-1/2" less.
I wouldn't.

https://sheldonbrown.com/harris/tires/index.html

09-03-17 | 06:20 PM

Berg417448

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Quote:

Originally Posted by nickg01

I have a 28 x 2.125 or 700 x 45c tire. Will I be okay to run a 27.5 by 2.125 inner tube until I can get the proper inner tube?

It will probably be fine. I've run 26" tubes in 29" tires in the past with no issues other than being a little more difficult to install.

09-04-17 | 07:37 AM

Hoopdriver

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Bikes: A bunch of old steel bikes

You might have a slight issue with pinching when mounting as the tube will hug the rim tighter. Once installed, it should be ok if you are in a hurry to get going. Instead of going to the trouble to mount and then change later, why not just get the proper sized tubes now?

09-04-17 | 10:26 AM

fietsbob

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You have my permission to try it. Is that what you needed?

09-05-17 | 08:59 AM

chong67

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Joined: Sep 2015

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From: Atlanta

Bikes: Trek FX 7.4 + Sirrus Expert Carbon X1

I need help.

Outside of my bike says 700x30mm tire.

My inner tube got a hole and I want to replace it. It says 700x28/38C

Yes, I measure the stem and it is 42mm.

Can I get this: 700c x 18-25c 42mm Stem Presta Valve