Gearhead guides

"Go-karts are fun and fast. These small vehicles can be made even stronger and faster and readers will . . . [find] out how"--Provided by publisher.

"ATVs tackle the toughest land around. But there are lots of ways to make these vehicles faster and cooler and readers will . . . [find] out how"--Provided by publisher.

"Dirt bikes are fast and tough. But there are lots of ways to make these motorcycles faster and stronger and readers will love finding out how! Easy-to-read text and action-packed photos will have reluctant readers racing to read this high-interest book"--Provided by publisher.