Old 05-02-19, 07:11 PM
Every day a winding road
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Join Date: Mar 2005
Location: Pittsburgh, PA
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Bikes: 2005 Cannondale SR500, 2008 Trek 7.3 FX, Jamis Aurora

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27 mm tubes in 25mm tire / 25mm 28 mm riding difference?

I have been riding on 28mm tires for a long time now. I used to have just one bike that was my road / touring bike so I used 28mm tires to get a happy medium. Now I have a dedicated touring bike so I am looking at going down a notch to 25mm tires.

The problem is I have a crap load of 27mm tubes. I have put smaller tubes in larger tires. In fat I prefer to go a si\ze down on tubes. But I have never put a larger tube in a smaller tire. Has anyone done this without issue?

Like I mentioned it is a long time since I have been riding on 25mm tires. Can't remember what it was like. Is there a huge difference between that and the 28s? Maybe I should just stick with 28?
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