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Tyre pressure

banjobrewbanjobrew Posts: 2
edited August 2015 in MTB workshop & tech
I've just bought a floor pump (giyo) and it has a pressure meter which tells me my tyres are at 30psi (30-50 recommended) but it feels really hard at 30 and I'm afraid to go any further. Is there a rule of thumb to stop me from bursting the tyre?

Thanks in advance!

Posts

  • cooldadcooldad Posts: 32,599
    I doubt you'll blow them up, but you could try another pressure gauge.
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  • The RookieThe Rookie Posts: 27,811
    Most people overestimate pressure when using the 'thumb' test, they probably are at 30psi.
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.
  • kajjalkajjal Posts: 3,380
    Simple guide is too high and you get shaken around, lose grip and get more punctures.
    Too low and the bikes handling becomes very unstable, tyres can come off the rims and again more punctures.
  • rockmonkeyscrockmonkeysc Posts: 14,774
    Gauges on pumps can be extremely inaccurate (mine is 12psi out).
    As above, you won't burst it and people tend to overestimate pressure when they squeeze the tyre by hand.
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