Peggy O'Neill stands outside Edmunds Elementary and Middle Schools in Burlington, Vt. She was one of the strongest advocates for the bike lane in her city but met a lot of resistance. Laurel Wamsley/NPR hide caption

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Laurel Wamsley/NPR

With Citizens' Help, Cities Can Build A Better Bike Lane — And More

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Kristin Armstrong won Olympic gold in the cycling time trial the day before she turned 43. Tim de Waele/Corbis via Getty Images hide caption

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Tim de Waele/Corbis via Getty Images

Olympic Athletes Prove That Older Doesn't Have To Mean Slower

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Japan's Kohei Uchimura performs on the horizontal bar during men's individual all-around final on Wednesday. Uchimura, widely considered to be the best male gymnast ever, repeated as the gold medalist in the event. Dmitri Lovetsky/AP hide caption

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Dmitri Lovetsky/AP

Russian tennis star Maria Sharapova isn't competing at the 2016 Olympics. At a March 7 press conference in Los Angeles, she told reporters she'd tested positive for meldonium, a prescription heart drug that improves blood flow. It was banned in January by the World Anti-Doping Agency. Robyn Beck/AFP/Getty Images hide caption

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Robyn Beck/AFP/Getty Images

Olympic Athletes Still Use Some Rx Drugs As A Path To 'Legal Doping'

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Jaime Rangel helps Gustavo Ruiz, 12, align a tire on his bike, at a recent community event in southeast Fresno, Calif. As manager for Bici Projects, Rangel promotes cycling in the Latino community as a great way to get in shape. Farida Jhabvala Romero/KQED hide caption

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Farida Jhabvala Romero/KQED

The Eastside Bicycle Club on a 35 mile Saturday evening ride with stops for tacos. Carlos Morales hide caption

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Carlos Morales

On A 'Tour De Tacos' With Los Angeles' Eastside Bike Club

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Britain's Chris Froome gestures to a teammate (right) after getting up from his third crash in two days. Froome, who hurt his wrist in Tuesday's fall, has abandoned the race that he won in 2013. Laurent Cipriani/AP hide caption

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Laurent Cipriani/AP