Jeff Bezos, founder of Amazon and space tourism company Blue Origin, jogs onto his rocket landing pad ahead of his trip to the edge of space on Tuesday. When top executives like Bezos have dangerous hobbies, there's often little company boards can do. Tony Gutierrez/AP hide caption
The Harley-Davidson LiveWire, launching in August, is the American manufacturer's first electric motorcycle. Josh Kurpius/Harley-Davidson hide caption
A U.S. Marine salutes as participants in the Rolling Thunder motorcycle rally rumble through Washington, D.C., in 2017. Organizers say the 2019 event will be the last in D.C. AFP/Getty Images hide caption
American Flat Track motorcycle racer Shayna Texter poses with a young fan during an autograph session at Canterbury Park outside Minneapolis. Texter is one of the most popular racers on the AFT circuit and, in 2011, became the first woman in the history of flat track racing to win a professional singles main event. Tom Goldman/NPR hide caption
Harley-Davidson motorcycle engines are assembled at the company's plant in Menomonee Falls, Wis. Tariffs from the European Union are prompting the company to shift production of some motorcycles for the European market overseas. Scott Olson/Getty Images hide caption
Rolling Thunder seeks to bring full accountability for all U.S. prisoners of war and missing in action (POW/MIA) soldiers. Cliff Owen/AP hide caption
The helmet Knievel wore in his Caesars Palace jump attempt. The resulting crash film was shown over and over again, launching Evel's career. Frank Morris/KCUR hide caption
Motorcycle champion Nicky Hayden on May 12 in Misano Adriatico, Italy. Hayden died Monday after being hit by a car while bicycling. Mirco Lazzari/Getty Images hide caption
Indian villagers walk past an overturned motorized rickshaw. Narinder Nanu/AFP/Getty Images hide caption
As of Wednesday, Kentucky has made it legal for people on motorcycles to run red lights after waiting for them to change. A motorcyclist rides in Kentucky in this file photo. Reuters /Landov hide caption
Reverend Jeff Moore blesses a biker at the Buffalo Soldiers Motorcycle Club rally in San Jose, Calif. Leila Day/KALW hide caption
Peter Fonda rides the "Captain America" chopper in Easy Rider. Columbia/The Kobal Collection hide caption
Harley-Davidson's new electric motorcycle can hit 60 mph from a standing start in 4 seconds. The company plans to unveil the LiveWire model Monday in New York. M.L. Johnson/AP hide caption
Pope Francis stands by a Harley-Davidson he was given, at the Vatican in June. The bike is to be sold at auction to raise money for charity. uncredited/AP hide caption
Edwin Mieses Jr.'s family provided this photo of the motorcyclist struck by an SUV during a rally in New York last month. Doctors put Mieses in a medically induced coma. AP hide caption
