Tyre Pressure for 25mm


Über Member
Just moved from 23 to 25mm tyres. Im 92kgs in weight. I used to run the 23's with 120psi rear and 100 front. Would it be sensible to go to 110 rear and 90front on the 25's? What pressure do you guys use?

jack smith

Über Member
Im the same weigjt as you i run about 100 for comfort and 115 for speed but i can go to 80 without much issue and get a really plush ride on pro4's


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Give it a try, see how it feels. If your senses are refined enough to notice a positive difference then stick with it.
Loch side.
Tyre pressure should be somewhere in a range between teeth-shattering hard and just enough pressure to not (often) bump through and get pinch flats. This is arrived at experimentally and dependent on your weight, the terrain you're on and your tolerance for discomfort. Only you can decide what it should be.
Further, a tyre's maximum pressure is size-dependent. All else being equal, a wider tyre will pop off the rim at a lower pressure than it's equivalent skinnier cousin. Pressure is accumulative at the bead - a wider tyre has more surface area and the total force acting on the bead is thus potentially larger than that for a narrower tyre.


Eh up
Bicycle Quarterly's TireDrop.pdf is a good starting point for narrow tyres.
Posted this many times before, good advice IMO



The bearded Powerhouse
110kgs here 25mm tyres, 25mm wide rims 95psi rear - 90 psi front

Soon be switching to 28s


also available in orange
Currently running Schwalbe Durano's in a 25 and they're around the 90 mark. I don't tend to go below the tyre's minimum pressure, which can vary, my old Vredsetin's minimum was 115!

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