You might not pay much attention to tire pressure on your car. Although you should check it on your car regularly, it matters a whole lot more when you're rolling on only two wheels instead of four. Proper tire pressure means you'll get the best handling performance out of your bike. Low tire pressure can make your bike incredibly difficult and dangerous to control.

Somewhere on your bike, you'll find a metal plaque with your bike's VIN and a bunch of other information, including the proper PSI ratings for your front and rear tires. Use a good tire gauge (ideally one with an analog face, not one of those little metal ones you can find in the dollar bin at any auto parts store; the latter are unreliable) to check your pressure. Then be prepared to add more air if necessary. Don't forget to put your valve stem caps back on before you head out.