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Tyre pressures on road bike

Discussion in 'Technical Know How' started by Stockie, 30 Mar 2012.

  1. Stockie

    Stockie Ticking the boxes

    Hi guys. Just taken delivery of my first road bike and going out on it tomorrow. Question is should tyre pressures be at maximum, minimum or somewhere in between pressures stated on side of tyres. Also I read somewhere that back should be higher than front is this true????? Any advice would be helpful.
  2. Nebulous

    Nebulous Senior Member

    Now this is a question which really gets people going. Lots of opinions - no real answers.
    Things to take into consideration are:-
    rider weight - heavier = higher pressure.
    road surface
    personal preference
    For what it's worth I tend to go towards the top end, particularly on the back, and leave 5-10 psi of difference between the two.
    HLaB and coffeejo like this.
  3. raindog

    raindog er.....

    Stick 100psi in and you'll be ok
  4. compo

    compo Über Member

    I just do mine bloody 'ard as I haven't a pressure gauge that's of any use.
  5. battered

    battered Well-Known Member

    Why not start in the middle and then try either side and see what you prefer? It's free.
    2clepto and tyred like this.
  6. biggs682

    biggs682 keep the steal its the real thing

    as per sidewall .
  7. I'm not a heavy rider (9st 7 ish) so I tend to go with more comfort and grip; I run 90-95psi front, 100-105psi rear and don't top up if the roads look skittish. However, heavier riders tend to pinch p'ture more and need to ride their tyres at or near the max to reduce the chances of it happening. Folk say harder tyres roll better too but I can't notice the difference and IMO the more comfortable you are the longer and faster you'll be able to go. You need to find the right balance of comfort/grip and p'ture resistance for you.
  8. kevin_cambs_uk

    kevin_cambs_uk Über Member

    Near Cambridge
    I run at anything over 110 in both front and back, seems okay to me
  9. Dave7

    Dave7 Well-Known Member

    On my previous bike I had 23mm and used to pump them till they felt OK/hard when squeezed. Then I decided to get a "proper pump" with guage and pump them to the recommended mid pressure.........:eek:-it was like riding an old bone shaker. I soon changed to 25mm and lower pressure which helped a lot.
  10. 110psi front and rear. I use Continental GP4000S 700X23 tyres and the maximum recommended pressure for the 23's is 120psi
  11. smokeysmoo

    smokeysmoo Jaffa Cake Apprentice

    Bolton, Lancashire
    I use GP4000s and Gatorskins on my two bikes, but as I'm a bit of a heffalump I run them at their max.
  12. billy1561

    billy1561 BB wrecker

    North west England
    145 psi in both my ultremos :ohmy:
  13. Nearly there

    Nearly there Über Member

    Being a heavier rider I have mine hard 100 psi front 115 on the back
  14. tyred

    tyred Veteran

    The width of the tyres need to be took into account.
  15. Jdratcliffe

    Jdratcliffe Well-Known Member

    Redhill, Surrey
    i run mine at 115psi front and back Specialized all conditions top psi is 120 on side wall in only 12st ( 6ft 1) and i notice the different in ride if they drop 5/10psi softer yes but feel "wrong" to me but as with all answers experiment as there is no "right" pressure i used to have them at 100 and they felt slow and sluggish so try it out get a decent pump try the mid range and ride the same loop adjust the pressure as you do it each time.
  16. billy1561

    billy1561 BB wrecker

    North west England
    Good advice from jd. The reason I have mine so high is because I'm 115 kg and that's the max pressure on the sidewall.
  17. guitarpete247

    guitarpete247 Just about surviving

    I'm now down to 83Kg but still run my Conti Ultra Sports at the max 116psi. I've always run my tyres at the max if I have a pressure gauge. If not I run them at chuffin' hard :whistle:.
  18. Jdratcliffe

    Jdratcliffe Well-Known Member

    Redhill, Surrey
    sometimes harder is not always best - harder tires can sometimes roll slower on rougher roads
  19. MrGrumpy

    MrGrumpy Huge Member

    Fly Fifer
    on the pro3s its max pressure as 15 stone of pure muscle :whistle: can be an issue. (reminds me its lunch ^_^)
    2clepto likes this.
  20. tyred

    tyred Veteran

    I have a set of these on my Carlton and whereas it's true the highest safe pressure on the sidewall is 116psi, if you look at the Continental website, the recommended pressure for these is something like 83psi. Max pressure and recommended pressure are not the same thing and tyres that are too hard have less grip, less comfort, probably worse rolling resistance on real world road surfaces. 116psi would be fine if you regularly ride up and down on top of your snooker table, for the road, I would prefer lower.
    HLaB and Jdratcliffe like this.