I can't take the pressure...

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Comments

  • Aidy
    Aidy Posts: 2,015
    sarajoy wrote:
    How long does it take you lot's tyres to lose pressure? Some weeks it seems they lose a lot fast, others I'm surprised how high they've stayed. Guess it could be to do with the weather too..

    I've been suprised by how often I need to add more air into the tyres of the road bike, probably should do it every couple of weeks.
  • secretsam
    secretsam Posts: 5,120
    soy_sauce wrote:
    EDIT: mine is 26"

    Now that's just boasting :P
    It's just a hill. Get over it.
  • bigflangesmallsprocket
    bigflangesmallsprocket Posts: 2,443
    90lbs on my 25c's (and 23c's). Personally I think how hard your tyres need to be depends on your bodyweight. Michelin actually have a recommended gradient of tyre pressure to bodyweight and their recommendation's roughly what I use.

    I recall getting my track pump and sticking 110 in it, felt like I was riding a pnuematic drill! I let the air out straight away...though keeping them harder than when I had previously used a standard pump. Then when I got some (rubbish) Michelin tyres I noticed the packaging had a table of pressures relating to bodyweight. If you have panniers and fully load them and then sit on your bike, you'll probably notice the tyres flattening out quite a bit due to the extra load and the ride will be affected by this as much as the imbalance of weight. For m/cycles too there are often different tyre pressures recommended for taking pillion passengers. I once gave a lift on a vespa 90 to someone twice as big as me and that was a pretty hairy experience, the tyres went right down and it was like riding with a puncture, not exactly the same situation, but same principle.

    Basically, if you're heavier then a higher tyre pressure may be right, but if you're a matchstick like me (sub 9stone), it's likely to be a comfort killer.
    Jam butties, officially endorsed by the Diddymen Olympic Squad
  • DonDaddyD
    DonDaddyD Posts: 12,689
    I can't ride anything less than 120psi on the back wheel or the bike/s will feel like they're dragging.

    Even at the pressure you can see the back tyre being squashed....

    I do go through my tyres quickly...

    The harsh ride and road vibration is taken care of with a carbon seat post and a quality seat.
    Food Chain number = 4

    A true scalp is not only overtaking someone but leaving them stopped at a set of lights. As you, who have clearly beaten the lights, pummels nothing but the open air ahead. ~ 'DondaddyD'. Player of the Unspoken Game
  • blu3cat
    blu3cat Posts: 1,016
    DonDaddyD wrote:
    I can't ride anything less than 120psi on the back wheel or the bike/s will feel like they're dragging.

    Even at the pressure you can see the back tyre being squashed....

    I do go through my tyres quickly...

    The harsh ride and road vibration is taken care of with a carbon seat post and a quality seat.

    Do you swap rear and front tyres around (I am noticing a lot more wear on mine), or just keep replacing the back one?
    "Bed is for sleepy people.
    Let's get a kebab and go to a disco."

    FCN = 3 - 5
    Colnago World Cup 2
  • jonginge
    jonginge Posts: 5,945
    blu3cat wrote:
    DonDaddyD wrote:
    I can't ride anything less than 120psi on the back wheel or the bike/s will feel like they're dragging.

    Even at the pressure you can see the back tyre being squashed....

    I do go through my tyres quickly...

    The harsh ride and road vibration is taken care of with a carbon seat post and a quality seat.

    Do you swap rear and front tyres around (I am noticing a lot more wear on mine), or just keep replacing the back one?
    Ask Sheldon: http://sheldonbrown.com/tire-rotation.html
    FCN 2-4 "Shut up legs", Jens Voigt
    Planet-x Scott
    Rides
  • blu3cat
    blu3cat Posts: 1,016
    Ask Sheldon: http://sheldonbrown.com/tire-rotation.html
    aaaahhhhhhhh, seems to make sense - Cheers.
    "Bed is for sleepy people.
    Let's get a kebab and go to a disco."

    FCN = 3 - 5
    Colnago World Cup 2
  • DonDaddyD
    DonDaddyD Posts: 12,689
    I have always just replaced the back tyre I never swap. In fact I don't think I've ever needed to replace a front tyre....
    Food Chain number = 4

    A true scalp is not only overtaking someone but leaving them stopped at a set of lights. As you, who have clearly beaten the lights, pummels nothing but the open air ahead. ~ 'DondaddyD'. Player of the Unspoken Game
  • il_principe
    il_principe Posts: 9,155
    cjcp wrote:
    ride_whenever wrote:
    110psi in my roadie, the extra softness makes it faster in my mind.

    +1. Above that and things start to get a bit uncomfortable on these roads.

    +1million. Carbon frame and carbon wheels + Surrey lanes = Not comfy!
  • doog442
    doog442 Posts: 370
    13 stone 11

    and 120 psi on front and rear on 25mm race lites

    Im convinced that this pressure is the reason for nil p**tures in 1200 miles

    ..or is it the kevlar :?:
  • roger_merriman
    roger_merriman Posts: 6,165
    Il Principe wrote:
    cjcp wrote:
    ride_whenever wrote:
    110psi in my roadie, the extra softness makes it faster in my mind.

    +1. Above that and things start to get a bit uncomfortable on these roads.

    +1million. Carbon frame and carbon wheels + Surrey lanes = Not comfy!

    i tend to leave it at just over 100ish which seems to be the sweet point, for me, though old red is big old steel bike so she tends to soak up most of the what the surrey lanes can dish out. though she's not light! mind you neither am I.

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