After impact, the authentic Specialized Evade helmet on the left held up but the counterfeit on the right crumbled. Specialized says the fakes lack reinforced roll cages — internal skeletons that hold the helmets together even after a crash.
Courtesy of Specialized Bicycles
Anthony Rowe, an associate professor at Carnegie Mellon University in Pittsburgh, wants bikes to feed information to nearby cars to avoid collisions. His bike is fitted with an array of precise instruments and a battery hidden in the water bottle.
Margaret J. Krauss/WESA
British Transport Secretary Chris Grayling, seen here after a Cabinet meeting at 10 Downing Street, is seen opening his car door on a passing cyclist in a video that was captured by a bike rider in London.
Justin Tallis/AFP/Getty Images
Peloton's New York City cycling studio has a television production facility so that subscribers, using bikes equipped with a waterproof tablet, can ride along at home.
Issac James/Courtesy of Peloton Cycle
A diagram released by the city of Paris shows how cyclists will be able to pass through intersections during red lights. In some cases, they can turn right; in others, they can go straight through.
City of Paris
A cyclist rides through a congested intersection in Portland, Oregon; the state is No. 6 on the League of American Bicyclists' new rankings of U.S. states.
Randy L. Rasmussen/The Oregonian /Landov
Cyclists can now call AAA and other groups for help when they run into trouble during a ride. Here, cyclists ride near the White House in Washington, D.C., last autumn.
Mladen Antonov/AFP/Getty Images