How much does tire pressure really matter?

[MarieV]

There's a link to the BQ Tire Pressure: Data and Details article at the bottom of that BQ page.

Here's a link to the previous BQ article on Tire Pressure Drop that gives recommended tire pressures depending on the geometry of your bike (i.e., rando vs race vs touring) and your weight.

Here's a cool tire pressure calculator app.

I usually ride 25mm Michelin Pro4 Endurance tires, which run on the wider side, probably closer to 26mm. I've usually run my tires around 80 psi on front and 85 psi on the rear for the comfiest ride without feeling sluggish. I just got new wheels with wide 25mm rims on my carbon bike and had to drop the pressure to 75 psi on the front and 80 psi on the rear since the ride felt a lot harsher on the new wider rims.

[Sky King]

MarieV - THANKS SO MUCH for putting up the links. My life has been a bit nuts and I totally spaced I had offered.

[JerryPortillo]

its really important that pressure is good or else you'll have to put more efforts in pedalling.