

A performer falls with a bicycle after riding it off the 10 meter platform during a break in competition at the FINA Diving World Series being held at the National Aquatics Center, also known as the Water Cube, in Beijing, March 23, 2012. David Gray/Reuters
A dog gets a ride in a basket of a bicycle along the 4th street bridge near downtown Los Angeles, as part of the CicLAvia event on Oct. 9, 2011. CicLAvia, makes about 10 miles of streets safe for people to walk, skate, play, and ride a bike in a auto free environment. Chris Carlson/AP
A mother and child are given a ride on a bicycle in Zalewa, a small town outside Blantyre, Southern Malawi, April 19, 2008. Malawians can make $5 a day from carrying people on bicycles, good money in a country where more than half of the 13 million people live below a dollar a day. Siphiwe Sibeko/Reuters
Competitors take part in bicycle jousting at the Chaps Olympiad at Bedford Square in central London, July 8, 2012. Olivia Harris/Reuters
An engaged couple sits on a bicycle as they pose for wedding photographs to the theme of 'naked wedding,' which means young couples get married with no houses, cars or little bank savings, on a pedestrian bridge on Valentine's Day in central Beijing, Feb. 14, 2011. China Daily/Reuters
An Indian school boy smiles as he rides on a bicycle rickshaw in monsoon rain in Allahabad, India, Sept. 14, 2012. Rajesh Kumar Singh/AP
People ride with their belongings on a wooden bicycle as they flee from renewed fighting between Congolese army and M23 rebels near the eastern Congolese city of Goma July 24, 2012. James Akena/Reuters
An extreme cycling enthusiast performs a stunt with a bicycle during a diving activity at the East Lake in Wuhan, Hubei province, July 9, 2012. China Daily/Reuters
Cyclists dismount from their bikes and jump over barriers during the Sucker Brook Cyclocross competition in Auburn, N.H., Sept. 9, 2009. Often called the 'steeplechase of bicycle racing,' cyclocross races are fast-paced and lined with obstacles including barriers, mud, sandpits, and uphill climbs. Mary Knox Merrill/The Christian Science Monitor
A man carries empty plastic bottles for recycling on his bicycle on a road in Harare, Zimbabwe, July, 10, 2012. Tsvangirayi Mukwazhi/AP
Professional cyclist Kathryn Bertine of Saint Kitts and Nevis (r.) poses with cycling fan and bicycle constructor Didi Senft of Germany on the course of the road race of the Road World Championship Cycling near Valkenburg, southern Netherlands, Sept. 20, 2012. Peter Dejong/AP
People pedal on bicycles equipped with dynamos which light up gigantic luminous bulbs as they participate in the art interactive installation "Dynamo-Fukushima", created by artist Yann Toma, during the European heritage days "Journees europeennes du Patrimoine" at the Grand Palais in Paris September 17, 2011. Gonzalo Fuentes/Reuters
Christine Nouikat (l.) owner of kinderkutsche.at shop, and her children Sophia and Niklas pose with their transport bicycle in a public park in Vienna, June 26, 2012. Bicycles have increased in popularity in Austria in recent years, with eleven percent of the population using bicycles as their main means of transport, according to the Ministry of Transportation, Innovation, and Technology. Lisi Niesner/Reuters
A man riding a rickshaw speaks with a loudspeaker during an election campaign for the Bangladesh Nationalist Party in Dhaka on December 24, 2008. Andrew Biraj/Reuters
A man works on a bicycle wheel inside Briton Gareth Jones' shop in Athens on August 3, 2012. In austerity Greece, the once lowly bike is winning new fans every day, from middle-aged commuters who relied on their cars to those who poked fun at former Prime minister George Papandreou's perchant for cycling as not being macho enough. Yorgos Karahalis/Reuters
A man waves a flag as he sits on top of a larger-then-life bicycle during the eighth stage of the Tour de France cycling race over 117.4 miles with start in Station des Rousses, and finish in Morzine-Avoriaz, Jura region, France, July 11, 2010. Christophe Ena/AP
A woman rides a Youbike bicycle past a renting station outside the Taipei City Hall in Taipei on November 5, 2009. YouBike uses a completely automated electronic management system to allow bicycles to be rented and returned at different locations in Taipei. Nicky Loh/Reuters
A man pulls out his bicycle at a parking area outside a railway station in Tachikawa, western Tokyo, November 30, 2010. Yuriko Nakao/Reuters
A woman rides a bicycle in front of the Duomo cathedral in downtown Milan, Italy, August 28, 2012. Alessandro Garofalo/Reuters
A rickshaw puller is reflected on the installed mirrors of his rickshaw as he waits for passengers on a street in the eastern Indian city of Patna, in Bihar state, January 21, 2012 Adnan Abidi/Reuters