Jason: Hi! My name is Jason, I work for Revolution Cycles and I am Service Manager there. Today, I am going to be showing you how to check tire pressure; you should be doing this ideally before every ride.
One of the things you want to look for before you start to put air in your tires is, every tire has a recommended pressure written on the side-wall, and in this particular tire its written right at the side-wall of the tire like I said. All tires will have this regardless of type. This particular tires pressure is a maximum of 85 psi, which is pounds per square inch. How you will do that is by a pump, floor pump, mini pump or compressed air. This particular pump you could find at any bike shop. This particular one is called a Floor Pump and you also have an option of a Mini Pump that could be mounted on to the bicycle so you can use it in emergency tire repair situation.
Most pumps will have a gauge on it, so it will tell you exactly how much air you are putting in it. So, the first thing you want to do is find the valve -- on this particular tire its here. There are two types of valves incidentally; one is called a Shredder Valve which is common on most bikes, but as you get into the higher-end bikes and the nicer bikes, you have a valve that's called the Presta Valve which is a metal valve.
So, first you want to remove the cap of the valve. Okay, you've got your shredder valve; you want to apply the pump to that valve. Most pumps have a locking feature on it. You can see that this particular one has a lock feature right behind the mount, which is pretty much the universal design of floor pumps. You're going to mount that onto the valve itself, just push it on and then use the locking lever to actually lock the pump onto the valve, and then just pump away and the gauge will tell you exactly how much air you are putting in; its measured in pounds per square inch.
Like I said earlier, this particular tire has 85, which is the maximum you want to put in the tire. You could probably run it a little lower if you are running in off-road terrain, or if you just want to lighten up the load, but that's basically how you install the air inside the tire. This is something that again you want to do before you try it or after a couple of rides -- a daily regimen of bicycle maintenance.
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