Best Time To Check Tire Pressure

I know to check the tire pressure when the tires are cold, but what about outdoor temperature?

When I check it in the mornings compared to the afternoons, I seem to be getting different readings. Am I seeing things?

If I'm not going crazy, when is the best time to check the tire pressure?

If I'm talking nonsense, please let me know so I can up my meds

I go to work when its 75* outside, but it's 107* when I ride home

Check it in the morning before you leave. It's higher in the afternoon because they have been cooking in the heat for 8 hours. As long as the pressure doesn't go too high in the afternoon you'll be fine.

you can ride a mile down the road and gain 4 psi, but 70 degrees and not ridden over night is the pefect measurement time. Tires will gain in the heat of the day also if they've been ridden, your only interested in cold psi.

Before the ride would be the best time.
Recommend pressures take into account the increase once the tires warm up.

i check before every ride and don't worry much about it aside from that.

Before ride is good if you have the means (nearby) to inflate a tire.

If not I would also check AFTER a ride and inspect the others items like chain, brakes, lights, oil etc after a ride too.

So you donot freak out when you are about to leave for a ride...

I check once year, every year.

I had the orange electric m202 tire pressure monitor on my bike. I luved it.

I check once year, every year.

...Which explains a lot.

:tongue:

I check them before I ride, whether it's morning or afternoon.  As long as they're "cold", as in not having been ridden in the period of time to take to cool down to the ambient temperature.  I wouldn't necessarily rely on the reading first thing in the morning if the bike was left outside in freezing weather, as your results might be skewed.  I would guess anything over 50F will give you a decent baseline.