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  1. #1
    Clydesdale, for now. belfast-biker's Avatar
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    What's the smallest tyre I can fit?

    I have a Specialized Sirrus...basic model - It has 700x28c wheels/tyres.

    (Wheels are Alexrims DA16 - tyres are Nimbus EX)


    Can I put a 23c or less (23mm or less?) tyre straight on there, or do I have to change the wheels first?

    Cheers! Don't want to look stupid at the LBS, don't mind it here!






    p.s. I'm 100kg - too much weight for so smal a tyre?
    Fat man trying to reform. slowly. :)
    START 330lbs
    NOW 286lbs
    TARGET 168lbs

  2. #2
    Guest
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    If you have the same bike I have- Specialized Sirrus A1 Sport, I've gotten new tires- I upgraded to 700 x 23 tires, and I feel like the bike performs soooooo much better. I started out with the 700x 28 tires too, then went to 700x 26, then finally moved on to 700x 23. Love 'em, except I hate the Continential tires I got- that brand is too hard to get on and off when I get flats...

    Koffee

    P.S. Oh no... I didn't change the rims at all, except I got the same size rims for my back wheel, except a really strong rear rim because I cracked the first one and I wanted a rim that would last.

  3. #3
    feros ferio John E's Avatar
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    If you have questions regarding tyre/rim compatibility, check Sheldon's website for a handy table.

    I favor 28mm tyres for commuting and general-purpose transportation and 23mm for club or sport cycling. Yes, there is quite a difference in feel!
    "Early to bed, early to rise. Work like hell, and advertise." -- George Stahlman
    Capo [dschaw'-poe]: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger, S/N 42624
    Peugeot: 1970 UO-8, S/N 0010468
    Bianchi: 1981 Campione d'Italia, S/N 1.M9914
    Schwinn: 1988 Project KOM-10, S/N F804069

  4. #4
    Clydesdale, for now. belfast-biker's Avatar
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    Originally posted by John E
    If you have questions regarding tyre/rim compatibility, check Sheldon's website for a handy table.

    I favor 28mm tyres for commuting and general-purpose transportation and 23mm for club or sport cycling. Yes, there is quite a difference in feel!

    Cheers Koffee for the real life experience. If it works for you, it'll do me!

    John E, been to that website and it's above me.... comprehensive though, bookmarked it.

    Ah, actually, it just made sense, based on this alexrims page. Cheers! Looks like I have a 16.3mm interior rim width, which is just small enough for a 23mm to be recommended...
    Last edited by belfast-biker; 07-03-03 at 10:10 AM.
    Fat man trying to reform. slowly. :)
    START 330lbs
    NOW 286lbs
    TARGET 168lbs

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