Trucks
Trucks are long and wide. When they pass you at high speeds the wind blast can cause you to lose control of the bike if you're not holding on tight. Fortunately, most trucks are driven by professional drivers, and most of them are careful to give bicyclists sufficient room. Beware the U-Haul drivers.

Behind or In Front, but Never Beside
Large trucks need to make wide right turns. You may be tempted to bicycle between the truck and the curb. Don't. If the truck driver decides to turn right, there is no way he or she can see you. As the truck turns, its rear wheels move toward the curb, potentially catching a bicyclist unlucky enough to be in the way. Such incidents can easily be fatal.

Riding in Traffic
Traffic Basics
Obey Your Signals
Don't Get Doored
Road Hazards
Make It Turn Green
Stay Away from Trucks
Use Lights at Night