Heather Carroll, a sidecar racer, hangs off the side of the motorcycle as her father drives. Credit: NEW ENGLAND RACING MUSEUM / Courtesy Sign up for the Concord Monitor’s morning newsletter for ...

If it has a motor, then someone, somewhere, is racing it. Not just on asphalt, but on dirt. For some reason, though, you like us probably never considered that sidecar motocross could be a thing—never ...

Narrator: It's unlike any motorsport you've ever seen. Sidecar racing involves two people operating a three-wheeled motorcycle that can go over 160 miles per hour. While one person sits behind the ...