Originally Posted by
maclane.reid
Do you ride a road bike or mountain bike? What is your tire pressure upon inflation?
Required pressure for road tires is generally a function of total weight (bike+rider+rig) and tire width, with the latter being an inverse relation. The rear tire requires more pressure than the front.
I weigh 160lbs; my bikes are around 20lbs + rig. So ...
28mm rear with groceries = 90 lbs
25mm rear road = 90lbs
25mm front road = 85lbs
23mm rear road = 100lbs
23mm front road = 95lbs