On Monday, I’ll be riding my bicycle to work as part of our “Get There” project for the Connecticut Post.

This is the Presta valve. It's smaller, lighter and more elegant than the far more common Schrader valve.
The concept is simple: Get to work without a car. A few Post reporters will be doing just that next week. The rest of them will be taking buses and Metro North. I’ll be the only one using human-powered transit.
I have commuted by bike to work before and I’ve done quite a bit of cycling, so there won’t be much of a learning curve that I’ll have to absorb.
For the benefit of those who would like to take their bikes to work, but don’t know where to start, I’ll be writing a few blogs on the subject.
Today, we’re going to look at inflating your tires, or “tyres” as they say in the UK.
This assumes that you already have a bicycle. And if you do, I’ll bet folding money that your bike has soft tires. If you’re going to commute by bike, the first step is to make sure your tires are up to pressure.
So, to do this, you’ll need a bicycle pump. A floor pump with a gauge works best. They are sold at bike shops. Don’t inflate your bike tires at a gas station because you’ll blow them to pieces. Bike tires need only a small amount air, and gas station pumps aren’t designed with bike tires in mind.

This is a Schrader valve. It's just like the one on your car. It's fatter and heavier, but it gets the job done.
Those emergency electric tire pumps that plug into your car’s cigarette lighter will usually work out well, too.
OK, so you have a pump. Now check the tire sidewall for the maximum pressure that the tire is designed for. Attach the chuck to the valve (there’s usually a little lever you’ll have to flip up or down), and begin pumping. You’ll want that maximum air pressure in your tires to reduce your rolling resistance as much as possible. Then add a few more pounds for good measure.
“What?” you ask? Have I lost my mind? Actually, it turns out that the number on the sidewall was set by the tire company’s legal department, and the tire will actually take a good deal more pressure. So, if the tire says 100 lbs., the tire can easily handle about 115 pounds per square inch of pressure.
Note: Because of the physics of tires and air pressure, fatter tires don’t need as much air pressure as skinny ones. This is why car tires need only about 35 pounds of pressure, even though your car weighs about 3,000 pounds.

The author's bike pumps. The one on the left was made in Italy and is only for Presta valves. The other one will work with both.
When you remove the chuck from the tire, you’ll hear a very brief “pffssst” sound. Don’t worry –– this is just the air escaping from the pump, not the tire.
One more thing. Bike tires lose about 5 to 10 percent of their air every week, so, top off your tires once a week.