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Tyre pressures??

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  • July 8, 2015 at 10:05 am #24392
    Lee170

    I’ve just bought a new bike and have been out a few times on it, it’s ace so far.

    I’m around 70kg and ride a 25c tyre, what pressures should I be running front and rear,
    I am going out today to buy a gauge track pump as my current pump has no gauge.

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Viewing 14 replies - 31 through 44 (of 44 total)
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  • July 10, 2015 at 5:31 pm #853013
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    ibr17xvii

    Batchy wrote:ibr17xvii

    Batchy wrote:
    ibr17xvii wrote:
    OP, what track pump did you go for?

    Looking to get one with a gauge on myself.


    I’ve just lashed out all of £5.99 for an Aldi track pump. To be honest I doubt whether there is anything out there that comes close to this item for value. It is a super pump with gauge and it is very solidly built considering the price. Check one out you will be amazed.

    Will do, cheers for that.

    July 10, 2015 at 4:51 pm #853011
    0
    Batchy

    ibr17xvii wrote:OP, what

    ibr17xvii wrote:
    OP, what track pump did you go for?

    Looking to get one with a gauge on myself.


    I’ve just lashed out all of £5.99 for an Aldi track pump. To be honest I doubt whether there is anything out there that comes close to this item for value. It is a super pump with gauge and it is very solidly built considering the price. Check one out you will be amazed.

    July 10, 2015 at 10:28 am #853009
    0
    Lee170

    I did order a halfords track
    I did order a halfords track pump half price £13. I know shop owners who love them, I haven’t picked it up yet though, I’ve seen a. Lovely lezyne track pump so maybe swayed!

    July 10, 2015 at 10:02 am #853007
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    fukawitribe

    ibr17xvii wrote:OP, what

    ibr17xvii wrote:
    OP, what track pump did you go for?

    Looking to get one with a gauge on myself.

    Sorry to butt in, but Evans have the Birzman Maha really rather cheap, e.g. the IV is about 24 quid

    http://www.evanscycles.com/products/birzman/zacoo-maha-iv-track-pump-ec050466

    They seem to get universally excellent reviews

    http://road.cc/content/review/84544-birzman-zacoo-maha-iii
    http://www.cyclingweekly.co.uk/reviews/pumps-puncture-repair/birzman-zacoo-maha-iii-track-pump-49-99
    http://www.bikeradar.com/road/gear/article/best-floor-pumps-for-road-cyclists-33412/

    Even tempted to replace my Blackburn for the head alone…

    July 10, 2015 at 7:53 am #853005
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    ibr17xvii

    OP, what track pump did you
    OP, what track pump did you go for?

    Looking to get one with a gauge on myself.

    July 10, 2015 at 1:26 am #853003
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    kwi

    Batchy wrote:Surely the

    Batchy wrote:
    Surely the optimum pressure of any tyre is somewhere between those that the manufacturers state on the side wall.

    The Max is also a bit conservative as it really depends on the rim, as that is an unknown to the manufacturer they tend to go low. And I think the minimum is more concerned with rolling off (Again, the rim has an influence.) rather than pinch flats.

    July 9, 2015 at 10:28 pm #853001
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    fukawitribe

    Batchy wrote:Surely the

    Batchy wrote:
    Surely the optimum pressure of any tyre is somewhere between those that the manufacturers state on the side wall.

    Well the obvious question is optimum for what under what conditions. I’ve yet to find a tyre whose quote minimum figures were not very heavily on the high side for my weight (~74kg) and the type of riding I do in the UK, YMMV clearly. I can’t imagine ever going even remotely as high as the maximum for anywhere outside of a track in this country.

    July 9, 2015 at 10:08 pm #852999
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    Batchy

    Surely the optimum pressure
    Surely the optimum pressure of any tyre is somewhere between those that the manufacturers state on the side wall. The heavier you are the more pressure is required up to the maximum figure. Usually the manufacturers regard around 80kg as being heavy so anyone around or above this should have tyres pumped up to maximum. Below minimum even for light riders will increase risk of snake bites.

    July 8, 2015 at 10:13 pm #852997
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    fukawitribe

    Simon E wrote:Start with 80

    Simon E wrote:
    Start with 80 front and 90 rear.

    When you’ve ridden those pressures for a while experiment by reducing / increasing them by at least 10 psi and see how it rides.

    This sounds like pretty good advice to me.

    July 8, 2015 at 8:58 pm #852995
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    Simon E

    Start with 80 front and 90
    Start with 80 front and 90 rear.

    When you’ve ridden those pressures for a while experiment by reducing / increasing them by at least 10 psi and see how it rides.

    July 8, 2015 at 1:27 pm #852993
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    edster99

    I’m 75 and normally run about
    I’m 75 and normally run about 90-95 front / 95-100 rear, Vittoria Corsa Elites. Depends on the road quality I am expecting – if its good, I will add a bit more.

    July 8, 2015 at 11:40 am #852991
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    fukawitribe

    FWIW – 75kg and 25mm tyres
    FWIW – 75kg and 25mm tyres (Vittoria Open Pave) on 23mm (17mm internal) rims – usually about 80psi (front) / 85psi (rear).

    July 8, 2015 at 10:56 am #852989
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    Podc

    I’m a similar weight and run
    I’m a similar weight and run 25c tyres at 70 front and 90 rear.

    July 8, 2015 at 10:23 am #852987
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    gmac101

    http://www.bikequarterly.com/
    http://www.bikequarterly.com/images/TireDrop.pdf

    This is a good place to start. Note that the load is per wheel not total

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