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What size tyres?

  • 06-01-2009 12:07pm
    #1
    Closed Accounts Posts: 6,831 ✭✭✭


    Folks. I need some advice. I have a Specialised tricross sport for my commute.
    It has the stock 700x32 typres fitted to the stock wheels (Alexrims).

    Does anyone know whther I can fit a 700x25 tyre to this wheel, or would I need to change the wheel in order to get a skinny tyre on.

    Please feel free to recommend a tyre (700x25) for commute (and some commuter racing in the park:)).

    Also, if I need to change the wheel to fit a skinnier tyre, recommend a reasonably priced wheelset.
    TBH, if I couldn't get a smaller tyre on this wheel, I may change the wheels to take 700x23.
    Thanks.


Comments

  • Registered Users, Registered Users 2 Posts: 6,860 ✭✭✭TinyExplosions


    ROK ON wrote: »
    Folks. I need some advice. I have a Specialised tricross sport for my commute.
    It has the stock 700x32 typres fitted to the stock wheels (Alexrims).

    Does anyone know whther I can fit a 700x25 tyre to this wheel, or would I need to change the wheel in order to get a skinny tyre on.

    Please feel free to recommend a tyre (700x25) for commute (and some commuter racing in the park:)).

    Also, if I need to change the wheel to fit a skinnier tyre, recommend a reasonably priced wheelset.
    TBH, if I couldn't get a smaller tyre on this wheel, I may change the wheels to take 700x23.
    Thanks.

    25's should be grand mate... go for Conti Gatorskins, it's be fine! :)


  • Closed Accounts Posts: 6,831 ✭✭✭ROK ON


    25's should be grand mate... go for Conti Gatorskins, it's be fine! :)

    Cool, oonce thats done, we will set about organising some of those commuter races that were talked about before Christmas. (I am a glutton for punishment).


  • Registered Users, Registered Users 2 Posts: 15,995 ✭✭✭✭blorg


    23s should be fine either but for a commuter I would stick on 25s. I have used 700x23 up to 700x35 on the same wheels.


  • Closed Accounts Posts: 2,051 ✭✭✭MCOS


    Hi,

    Have 26s on my wheels. What are the main differences between 26s and 23s. Do they require different rims? Are they much faster? Much less stable?

    Thanks,
    MCOS


  • Registered Users, Registered Users 2 Posts: 14,318 ✭✭✭✭Raam


    MCOS wrote: »
    Hi,

    Have 26s on my wheels. What are the main differences between 26s and 23s. Do they require different rims? Are they much faster? Much less stable?

    Thanks,
    MCOS

    Dunno about the rims, but narrower tyres are typically faster.


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  • Registered Users, Registered Users 2 Posts: 15,995 ✭✭✭✭blorg


    Wider tyres will tend to give you a more comfortable ride in terms of soaking up bumps and road imperfections. They will be a bit heavier and (maybe) a bit slower although this is disputed as they don't have higher rolling resistance.


  • Registered Users, Registered Users 2 Posts: 31,245 ✭✭✭✭Lumen


    Since you can run a 35mm tyre on standard road rims you're not going to have any problems with 26s.

    I ran 32s for years, and was faster than I am now on 23s (though in fairness that's not saying much).

    Some interesting discussion (and stats) here.

    Gatorskins at 30kph with 85kg bike+rider combo sap 40.3 Watts.

    You could apparently save 10W by choosing the Michelin Pro2 Race, which is only 10% off the top slot (held by a tyre with "Very Low" puncture resistance).

    That 10W will take you from 30kph to 30.7kph, which is the same benefit as losing 10kg on a diet (rolling resistance is related to vertical loading).


  • Registered Users, Registered Users 2 Posts: 6,860 ✭✭✭TinyExplosions


    Lumen wrote: »
    Gatorskins at 30kph with 85kg bike+rider combo sap 40.3 Watts.

    You could apparently save 10W by choosing the Michelin Pro2 Race, which is only 10% off the top slot (held by a tyre with "Very Low" puncture resistance).

    That 10W will take you from 30kph to 30.7kph, which is the same benefit as losing 10kg on a diet (rolling resistance is related to vertical loading).

    Great. You tell me this now -right after I ordered the Gatorskins (and they're sitting on my desk)... could have mentioned this t'other day :)

    off to get some pro2's... could do with the 10kg equivalent saving


  • Closed Accounts Posts: 6,831 ✭✭✭ROK ON


    Thanks folks. Have ordered the Conti gatorskins. Will be interesting to see what they are like, as I have the much derided Armadillo on my other bike.


  • Registered Users, Registered Users 2 Posts: 6,860 ✭✭✭TinyExplosions


    ROK ON wrote: »
    Thanks folks. Have ordered the Conti gatorskins. Will be interesting to see what they are like, as I have the much derided Armadillo on my other bike.

    I used the armadillo's for ages, and never had a problem, or experienced the 'slippery in the wet' nature of them.

    However, I moved over to Conti GP4000s' on the fixie a few months ago, and they're much better -maybe I've got good stretches of road, but I'm still p*cture free and the grips great!

    Mind you, I'm going Gatorskins on the new build


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  • Registered Users, Registered Users 2 Posts: 31,245 ✭✭✭✭Lumen


    Great. You tell me this now -right after I ordered the Gatorskins (and they're sitting on my desk)... could have mentioned this t'other day :)

    off to get some pro2's... could do with the 10kg equivalent saving

    Yeah, but the new Michelin Pro Grip has 60% more grip than the Pro Race on wet roads, and the same "pointiness" of rolling efficiency on the performance graph.

    :D


  • Registered Users, Registered Users 2 Posts: 6,860 ✭✭✭TinyExplosions


    Lumen wrote: »
    Yeah, but the new Michelin Pro Grip has 60% more grip than the Pro Race on wet roads, and the same "pointiness" of rolling efficiency on the performance graph.

    :D

    I hate you with the fire of a thousand suns

    swine.


  • Registered Users, Registered Users 2 Posts: 31,245 ✭✭✭✭Lumen


    I hate you with the fire of a thousand suns

    I was just saving you money, honest. Apparently, the Pro Grip have a "horrible" wear rate. See, the internet can prove anything you want.

    Mind you, they might be perfect boards product, the criteria for which are the shortest time until you get to replace them, and the the least number of clicks to order (haven't checked that).

    Unless Wiggle have started doing edible Assos underwear....


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