I bought my first road bike on Sunday - a Trek 1500 - so this will be the first in a series of stupid questions.
The Trek comes with Bontrager tires, which the LBS told me to pump to a pressure of 100. I have no reason to doubt this, but how do I verify what the correct pressure should be for these (or any other) tires? Is this determined by the tires or the inner tube?
Also, when connecting the pump, the meter starts at zero and goes to 100 after a few pumps. Shouldn't the meter be reading the pressure already in the tires, and wouldn't this already be close to 100 if they were only pumped a few days ago?
The Trek comes with Bontrager tires, which the LBS told me to pump to a pressure of 100. I have no reason to doubt this, but how do I verify what the correct pressure should be for these (or any other) tires? Is this determined by the tires or the inner tube?
Also, when connecting the pump, the meter starts at zero and goes to 100 after a few pumps. Shouldn't the meter be reading the pressure already in the tires, and wouldn't this already be close to 100 if they were only pumped a few days ago?