Tyre Pressure

[fossyant]

JTM hits it on the nose.

Was going to say are your fillings secure.

I run 110 on the rear of my commuter, with loaded panniers. 100 front. 23mm tyres.

 

[andyfraser]

I'm running 120psi front and rear for my 23mm Vittorias and 90psi for my 32mm Marathon Pluses. I'm happy with that.

 

[moo]

I started out by running 120 rear 110 front on 23c tyres. Considering I only weigh 140lb you can imagine how bad the ride was. After some reading and dropping to 105 rear 95 front I have a much smoother, faster ride.

On rough roads you will go faster with the right/lower tyre pressure, as the tyre needs to deform over minor road imperfections. Preventing it from doing so by running at too high a pressure will cause loss of momentum, not to mention lost jelly babies.

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