Tyre pressure – rule of thumbL hot v cold ?
(Not sure if Ive asked this before, if I have apologies)
Read this a while back:
Bike Tyre Pressure Setting – 10% rule
MY manual recommends 32 PSI front solo. I run 36. I found this out by testing as follows:
Inflate tire to cold pressure.
Run the bike a minimum of 20 minutes.
Check hot pressure. It should increase 10%.
If its less you need less air.
If its more you need more air.
Do this in 2 lb increments.
I presume the pressure rise when hot comes from friction between the tyre and the road, and a degree of flexing of the carcass itself. Based on the above, it would look like you can gauge whether the tyre is working properly by the temp/pressure rise between cold and hot.
Does that ring true – could you use that to find out what pressures you should be running for your tyres, your own riding style and weight ?