Carla Mooney 
Extreme Motocross and BMX [PDF ebook] 

Motocross and BMX racers speed over all types of terrain, including dirt tracks, muddy hills, and grassy roads. They fly over jumps and obstacles. No matter the race, the goal is the same: finish first. In this captivating book, readers who may not have access to more traditional sports will be transported into the dynamic worlds of motocross and BMX racing. They will learn about each extreme sport, the equipment used, safety precautions, and some of the sport’s superstars. With vivid images and riveting descriptions, readers will be swept into the world of motocross and BMX racing.