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Post by robmanns2007 on Mar 16, 2008 17:18:37 GMT
willa road bike 700 tyre fit a mtb 29er rim (diameter wise) ?
i have always understood they are the same but expressed differently - one metric and the other imperial ?
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Post by muddyfox on Mar 16, 2008 18:48:26 GMT
never tried it. I would suggest it would diameter wise but you might have some problems making it fit width wise.
What rim and what tyre combo are the obvious questions although not sure i will be able to confirm any answers you give!
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Post by Huey on Mar 16, 2008 23:30:00 GMT
will a road bike 700 tyre fit a mtb 29er rim (diameter wise) ? i have always understood they are the same but expressed differently - one metric and the other imperial ? We covered this in todays Masterclass (you know as you were there, Rob) but for those who weren't able to tune in, I'll post a quick summary... Rims for 700c road tyres (actually ISO 622, i.e. rim diameter 622mm) and "29er" tyres are one and the same in terms of diameter, i.e. both fit tyres marked "700c" ... 29er rims are usually (currently) just strong touring rims in any case. The larger wheels are achieved by mounting a mountain-bike-width tire to a 700c diameter rim. The truth has been altered from reality slightly in naming the big wheeled MTB variant. "29er" mimics the description of a 26" wheel (ISO 559, i.e. rim diameter 559mm) in stating the overall diameter of a typical 2" wide tyre sitting on the rim. 26ers are typically 26.2" in diameter, whereas 29ers are typically 28.5" in diameter but that doesn't sound as punchy as "29er". The thing to be aware of - and as Muddyfox has hinted at above - is the fact that skinny road tyres and big fat knobbly 29er tyres can both (theoretically) fit on the same rim, so you should be sensible: Don't put a 29er tyre on a narrow rim, nor a skinny road bike tyre on a "29er" rim (typically a rim 23mm+ wide).
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