Kick excitement into high gear with this extreme title! Short, easy-to-read text pairs with full-color, action-packed photos to introduce young adventurers to dirt bikes. Readers will learn what a dirt bike is and about the history of dirt bikes. Dirt bike components are discussed, including the forks, engine, chassis, tires, wheels, and brakes. Competitions such as motocross and free style are covered, as is safety gear. Extreme facts supplement the text, leaving future off-road riders excited about extreme motorcycling! Aligned to Common Core Standards and correlated to state standards. A&D Xtreme is an imprint of Abdo Publishing, a division of ABDO.