WHETHER THEY'RE JUMPING barrels, zipping along the highway ona road trip, or tearing up the motocross track, motorcycles are thecoolest things on two wheels! Choppers! authors SusanGoodman and Michael Doolittle show readers the many types ofmotorcycles there are, how they work, and some of the excitingjobs, competitions, and events that feature them. This actionpackedStep 3 reader is filled with vibrant color photographs!