On 5/28/2011 7:10 PM, RichD wrote:
I have a mountain bike, the rear tire reads: 24 x 1.75
Can I replace it with a 24 x 1.95?

Most likely, as long as the wider tire does not rub on the frame.

(what does the second number mean anyway?)

Read: http://sheldonbrown.com/tire-sizing.html.

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Tºm Shermªn - 42.435731,-83.985007
I am a vehicular cyclist.