MickeyBlueEyes
Eat, Sleep, Ride, Repeat.
- Location
- Derbyshire
How do you accurately know what PSI you are running ? If you are looking to run at 100 how much discharge do you normally allow for when unclipping the pump ?
Accuracy of tyre pressures
- Thread starter MickeyBlueEyes
- Start date
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Profpointy
Legendary Member
Doesn't really matter ....
because you work out what reading on your pump gives a good speed / rough ride / comfort / puncture proof compromise, then always pump it up to that.
So if pump says 110psi, but it's really 95 doesn't matter, since 110 on the pump gives you the 95 you really want.
because you work out what reading on your pump gives a good speed / rough ride / comfort / puncture proof compromise, then always pump it up to that.
So if pump says 110psi, but it's really 95 doesn't matter, since 110 on the pump gives you the 95 you really want.
I took my tyres up to 80psi a few days ago, which is the maximum recommended on the sidewall. On yesterday's ride there was a stretch of slightly rough road and the amount of vibrations coming up through the frame was frightening. It was like I was on wooden tyres. I was beginning to fear for the frame. In the end I stopped and let some air out of the tyres, only two or three quick bursts, and it transformed the ride. Things smoothed out and vibrations were reduced to almost nothing as the softer tyres absorbed the shocks. I don't know what pressures I have now as I haven't checked, but the tyres are still hard enough to resist pinch punctures.
Rob3rt
Man or Moose!
- Location
- Manchester
This.
Cycleops
Legendary Member
- Location
- Accra, Ghana
Simple, just buy a little pressure gauge and apply it after you remove the pump!
Cubist
Still wavin'
- Location
- Ovver 'thill
The air that escapes as you undo the hose is in the hose itself. If you want accuracy buy a gauge. Many pumps are in curate. I always suspected mine over read the pressure. A gauge confirms it does by some 8-10 psi, crucial when you're running tubeless at about 20 psi.
Biker Joe
Über Member
- Location
- Nr Harlow, Essex.
As mentioned, check with a dedicated pressure gauge. I reality, you are not going to notice the difference in a tyre pressure 5 or so PSI +/-.
If your going to ride over rough surfaces a softer tyre will give you a better ride.
Exact tyre pressure is not critical. Use whatever suits your needs.
If your going to ride over rough surfaces a softer tyre will give you a better ride.
Exact tyre pressure is not critical. Use whatever suits your needs.
