Notes

32 pages : colour illustrations. Contents: The big race -- Dirt bike traction -- Dirt bike speed -- Dirt bikes in action -- Dirt bike diagram. Summary: Dirt bike racers soar over jumps and race through mud to the finish line. From motocross and supercross tracks to freestyle motocross, see dirt bikes in action and learn about the design that makes it possible for bikes and their riders to get big air! (Back cover) Blazers. Horsepower