A pillion on a motorcycle shouts slogans as he carries an empty gas cylinder while participating in a rally against the shortage of liquefied petroleum gas (LPG) including petrol and diesel in Kathmandu January 4, 2012. Major petroleum products, including petrol, diesel and LPG, has been on short supply over the last week in Nepal mainly after the Nepal Oil Corporation (NOC) tightened supply amid low imports according to the local media. REUTERS/Navesh Chitrakar (NEPAL - Tags: ENERGY BUSINESS TRANSPORT CIVIL UNREST) 

A man leaves a polling station on a motorcycle with his family after casting his vote in Toukh, El-Kalubia governorate, about 25 km (16 miles) northeast of Cairo January 3, 2012. Egyptians voted in the third round of a parliamentary election on Tuesday that has so far handed Islamists the biggest share of seats in an assembly that will be central in the planned transition from army rule. REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: POLITICS ELECTIONS) 

Protesters transport an injured fellow protester on a motorcycle during clashes with riot police near cabinet offices near Tahrir Square in Cairo December 18, 2011. Protesters and security forces fought in Cairo on Sunday, the third day of clashes that have killed 10 people and exposed rifts over the army's role as it manages Egypt's promised transition from military to civilian rule. REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: CIVIL UNREST POLITICS TPX IMAGES OF THE DAY) 

A man dressed as Santa Claus rides on a motorcycle during the Christmas celebrations at Park Street in Kolkata December 18, 2011.
REUTERS/Rupak De Chowdhuri (INDIA - Tags: RELIGION SOCIETY) 

A protester pillions an injured fellow protester on a motorcycle through tear gas fired by riot police during clashes along a road which leads to the Interior Ministry, near Tahrir Square in Cairo November 22, 2011. Egyptians frustrated with military rule battled police in the streets again on Tuesday as the generals scrambled to cope with the cabinet's proffered resignation after bloodshed that has jolted plans for Egypt's first free election in decades. REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: CIVIL UNREST POLITICS) 

Anti-government protesters rush a wounded fellow protester on a motorcycle after clashes with supporters of Yemen's President Ali Abdullah Saleh and police in Sanaa October 18, 2011. REUTERS/Khaled Abdullah (YEMEN - Tags: POLITICS CIVIL UNREST) 

Residents on a motorbike look at burning fuel trucks attacked by gunmen on a highway near Shikarpur, about 39 km (24 miles) from Sukkur in Pakistan's Sindh province October 13, 2011. Gunmen opened fire on an Afghanistan-bound convoy of NATO fuel supply trucks in the Shikarpur area of southern Sindh province, and set fire to six of them, police officials said. REUTERS/Nadeem Soomro (PAKISTAN - Tags: CRIME LAW TPX IMAGES OF THE DAY) 

A man rides a motorbike through flooded streets in Ayutthaya province October 7, 2011. Thailand has been hit by massive flooding caused by a tropical storm followed by seasonal monsoon rains, which usually fall from August to October. At least 224 people have died in flooding in Thailand since mid-July, officials said on Tuesday. REUTERS/Sukree Sukplang (THAILAND - Tags: POLITICS ENVIRONMENT TRANSPORT) 

Sarah Palin, former governor of Alaska, takes part in the Rolling Thunder motorcycle ride to honour U.S. veterans, in Washington May 29, 2011. REUTERS/Molly Riley (UNITED STATES - Tags: POLITICS IMAGES OF THE DAY) 

A boy dressed as a clown rides on a bicycle at Cidade de Deus (City of God) slum in Rio de Janeiro March 15, 2011, where U.S. President Barrack Obama will visit on Sunday, according to the local press. Obama begins an official visit to Brazil later this week and will deliver a speech at Cinelandia Square and visit a slum with the Peacekeeping unit program on March 20. REUTERS/Ricardo Moraes (BRAZIL - Tags: POLITICS SOCIETY) 

A man rides a bicycle with a young girl sitting on the back on a sunny day in Beijing March 9, 2011. REUTERS/David Gray (CHINA - Tags: SOCIETY) 

A man holds onto balloons while riding pillion on a motorcycle along a road on Valentine's Day in Lahore February 14, 2011. REUTERS/Mohsin Raza (PAKISTAN - Tags: SOCIETY TRANSPORT) 

A protester prepares to throw a stone against policemen during a rally against austerity in Athens November 15, 2010. Greece promised on Monday to stick to its deficit cutting plan while its prime minister said Germany's tough stance may push debt-laden European nations such as Portugal and Ireland to bankruptcy. REUTERS/Yiorgos Karahalis (GREECE - Tags: BUSINESS POLITICS CIVIL UNREST) 

A protester throws a garbage can towards policemen during a rally against austerity in Athens November 15, 2010. Greece promised on Monday to stick to its deficit cutting plan while its prime minister said Germany's tough stance may push debt-laden European nations such as Portugal and Ireland to bankruptcy. REUTERS/Yiorgos Karahalis (GREECE - Tags: BUSINESS POLITICS CIVIL UNREST) 

Motorists ride through a dusty street in the Magelang district of Indonesia's central Java province November 8, 2010. Mount Merapi, on the outskirts of Yogyakarta, began spewing lava, superheated gas and deadly clouds of ash two week ago and has so far killed over 130 people and forced the evacuation of nearly 300,000. Dozens of flights to and from the capital Jakarta, around 600 km (375 miles) from the volcano, were cancelled over the weekend after the volcano belched fresh clouds of volcanic ash 6,000 metres (19,000 ft) into the atmosphere. REUTERS/Dwi Oblo (INDONESIA - Tags: DISASTER ENVIRONMENT) 

A man rides his motorcycle during ash rain in the city of Magelang as Mount Merapi volcano erupts November 4, 2010. Mount Merapi has killed at least 39 people since it began erupting on October 26. Over 74 have been injured and more than 70,000 people have been evacuated, according to Indonesia's National Disaster Management Board on Wednesday. REUTERS/Beawiharta (INDONESIA - Tags: DISASTER ENVIRONMENT) 

A couple dressed as characters from the television series Futurama take part in the "Moto Halloween Party 2010" in Cali October 28, 2010. Every year, motorcycling enthusiasts dress up in outfits and ride around Cali to celebrate Halloween. REUTERS/Jamie Saldarriaga (COLOMBIA - Tags: SOCIETY IMAGES OF THE DAY) 

A Palestinian rides a motorbike with his sons as they pass Islamic Jihad militants during an anti-Israel military show in Rafah refugee camp in the southern Gaza Strip October 28, 2010. REUTERS/Suhaib Salem (GAZA - Tags: POLITICS CIVIL UNREST) 

A Somali boy carries sword fish as he rides on a motorcycle taxi in southern Mogadishu, August 16, 2010. REUTERS/Feisal Omar (SOMALIA - Tags: SOCIETY IMAGES OF THE DAY) 

Residents pass a LED display combined with China's first photovoltaic system integrated into a glass wall with solar technology outside a hotel in Beijing in this picture taken July 7, 2010. Solar companies, once prized for their astronomical growth prospects, have come under scrutiny by U.S. regulators for alleged accounting irregularities, sparking fears that more cases could start to surface in the months ahead. Picture taken July 7, 2010. To match Analysis SOLAR-ACCOUNTING/ REUTERS/Bobby Yip (CHINA - Tags: BUSINESS ENERGY) 

A motorcyclist and a pillion rider travel past an artwork created by Carlos Andres Gomez called "Existence" near Cali May 19, 2010. Gomez sculpts figures in the earth to raise awareness of environmental issues. REUTERS/Jaime Saldarriaga (COLOMBIA) 

Anti-government 'red shirt' supporters assist an injured foreign journalist to safety after he was shot while covering clashes with army soldiers near Bangkok's Lumpini Park on May 14, 2010. Thai troops battled anti-government protesters in central Bangkok on Friday attempting to seal off their encampment after an assassination attempt on a renegade general unleashed a new wave of violence. REUTERS/Adrees Latif (THAILAND - Tags: MILITARY CIVIL UNREST IMAGES OF THE DAY) 

Anti-government "red shirt" demonstrators carrying Thailand's national flag protest through the streets of Bangkok April 12, 2010. Thai anti-government protesters marched in Bangkok on Monday, carrying coffins to symbolise those killed at the weekend as the violence hit shares and prompted Southeast Asia's biggest bank to say "bets are off" in Thailand. REUTERS/Adrees Latif (THAILAND - Tags: CIVIL UNREST POLITICS) 

A pillion rider uses a video camera as she rides through the town of Wootton Bassett in southern England March 14, 2010. Thousands of motorcyclists participated in a rally to honour the people of the town and the soldiers killed in Afghanistan. REUTERS/Suzanne Plunkett (BRITAIN - Tags: SOCIETY) 

Residents pass by collapsed buildings after an earthquake in Port-au-Prince January 13, 2010. A major earthquake rocked Haiti and its president said he feared thousands were dead after the presidential palace, schools, hospitals and hillside shanties collapsed, leaving the Caribbean nation appealing for international help. REUTERS/Eduardo Munoz (HAITI - Tags: DISASTER) 

U.S. actor Tom Cruise and actress Cameron Diaz ride a motorbike on the set during the filming of "Knight & Day", a movie directed by U.S. director James Mangold, in Seville, southern Spain, December 11, 2009. REUTERS/Javier Barbancho (SPAIN ENTERTAINMENT) 

A woman on a motorcycle covers her face from smoke coming from burning garbage dump in Jammu December 7, 2009. The biggest climate meeting in history, with 15,000 participants from 192 nations, opened in Copenhagen on Monday with hosts Denmark saying an unmissable opportunity to protect the planet was "within reach". REUTERS/Mukesh Gupta (INDIAN-ADMINISTERED KASHMIR ENVIRONMENT SOCIETY TRANSPORT) 

U.S. actors Tom Cruise and Cameron Diaz ride a motorbike on the set during the filming of "Knight & Day", a movie being directed by U.S. director James Mangold in Cadiz, southern Spain November 28, 2009. REUTERS/Javier Barbancho (SPAIN ENTERTAINMENT IMAGES OF THE DAY) 

A man rides a motorbike with his children after prayers to mark the first day of the Muslim holiday of Eid al-Adha in Kano November 27, 2009. Muslims around the world celebrate Eid al-Adha to mark the end of the haj by slaughtering sheep, goats, cows and camels to commemorate Prophet Abraham's willingness to sacrifice his son Ismail on God's command. REUTERS/Akintunde Akinleye (NIGERIA RELIGION IMAGES OF THE DAY TRANSPORT ANNIVERSARY SOCIETY) 

Employees of Harley Davidson and biking enthusiasts ride Harley Davidson motorcycles during a promotional event in Mumbai November 15, 2009. Harley Davidson entered the Indian market this August. REUTERS/Arko Datta (INDIA TRANSPORT SOCIETY BUSINESS) 

A couple dressed as Harlistas, a term for Harley riders in Latin America, ride a bicycle made to resemble a Harley Davidson during Bike Day celebrations in Bogota November 8, 2009. REUTERS/John Vizcaino (COLOMBIA SOCIETY) 

A motorist wears a mask while riding to work during rush hour in Taipei October 29, 2009. There are around 8.8 million motorcycles and 4.8 million cars on Taiwan's roads and nearly all motor vehicles and inhabitants are squeezed into a third of the island's area. This results in high concentrations of polluting emissions in the places where people live and work, according to official reports. A U.N. climate change summit in Copenhagen will be held in December. REUTERS/Nicky Loh (TAIWAN TRANSPORT ENVIRONMENT SOCIETY) 

An Afghan man with family rides his motorcycle at the road in the village of Ebrahihimkhel in Baraki Barak district in Logar province October 8, 2009.REUTERS/Nikola Solic (AFGHANISTAN CONFLICT SOCIETY TRANSPORT) 

An Afghani family on a motorcycle passes by U.S. Marine SGT Peter Neubauer, from 8th Marine Regiment, as he walks during a foot patrol in Garmsir district in Helmand province, October 5, 2009.REUTERS/Asmaa Waguih (AFGHANISTAN POLITICS MILITARY) 

Harley-Davidson motorcycle owners pose in downtown Beirut before the start of the Lebanon Harley Owners Group (H.O.G.) Tour October 2, 2009. Three hundred riders from regional chapters of the H.O.G. and individual riders on Friday started the three-day ride. REUTERS/Jamal Saidi (LEBANON SOCIETY TRANSPORT) 

Palestinians ride a motorcycle as they take part in a protest near the Nahal Oz crossing between Israel and the northern Gaza Strip September 16, 2009. Palestinians and Israelis held separate protests on both sides of the border on Wednesday. The Palestinians protested Israel's blockade of the coastal territory and called for the release of Palestinian prisoners held in the Israeli jails. The Israelis demanded the release of abducted Israeli soldier Gilad Shalit, captured by Palestinian gunmen from Gaza during a cross-border raid in June 2006. REUTERS/Mohammed Salem (GAZA POLITICS CONFLICT) 

Men use a modified motorcycle to transport their carpets out of northwest Pakistan's troubled Khyber Agency September 11, 2009, days after security forces launched an offensive against militants in the area. REUTERS/Fayaz Aziz (PAKISTAN POLITICS CONFLICT SOCIETY) 

A resident sits on a motorcycle with her pet dog on a road in Beijing, September 4, 2009. REUTERS/Jason Lee (CHINA ANIMALS SOCIETY TRANSPORT) 

Two men ride past a damaged road after an earthquake in Pangalengan, West Java September 3, 2009. The death toll from a 7.0 magnitude earthquake that struck Indonesia, shattering rural homes and forcing terrified city residents into the street, stood at 44 and was likely to rise, government agencies said on Thursday. REUTERS/Supri (INDONESIA DISASTER ENVIRONMENT) 

Supporters race to keep up with Afghan presidential candidate Abdullah Abdullah's convoy as he arrives to give a campaign speech at the Shrine of Hazrat Ali in Mazar-i-Sharif in Balkh province, August 13, 2009. Afghanistan's presidential election will be held on August 20. REUTERS/Lucy Nicholson (AFGHANISTAN POLITICS ELECTIONS IMAGES OF THE DAY) 

A family rides a motorbike in Kabul, August 7, 2009. REUTERS/Lucy Nicholson (AFGHANISTAN SOCIETY) 

A family rides a motorcycle in Pushkar in India's desert state of Rajasthan June 24, 2009.
REUTERS/Jorge Silva (INDIA SOCIETY) 

A man manoeuvres his motorcycle on a flooded street due to continuous rain brought by Tropical storm "Seven" in Manila's suburban Las Pinas district July 16, 2009. REUTERS/Erik de Castro (PHILIPPINES ENVIRONMENT SOCIETY) 

Pigeons fly as clouds gather over New Delhi's Connaught Place July 16, 2009. India's monsoon rains were six percent above normal in the week to July 15, rebounding after a prolonged weak patch, the weather office said on Thursday. REUTERS/Buddhika Weerasinghe (INDIA ENVIRONMENT ANIMALS SOCIETY) 

An Afghan family rides on a motorcycle past U.S. soldiers of the 10th Mountain Division conducting a joint patrol with French and Afghan troops at Hajian village in the mountains of Wardak Province July 15, 2009. REUTERS/Shamil Zhumatov (AFGHANISTAN POLITICS CONFLICT MILITARY) 

A man holds an umbrella as he travels on a motorcycle on a rainy day in Mumbai July 13, 2009. REUTERS/Arko Datta (INDIA ENVIRONMENT SOCIETY) 

A striking worker at Ssangyong Motor gives his children a ride on a motor scooter at its main plant in Pyeongtaek, about 70 km (40 miles) south of Seoul, June 28, 2009. The automaker's management left the plant late Saturday after about 3,000 managerial officers, management-backed employees unaffected by layoff plan and temporary guards hired by management, entered the plant last Friday and clashed with fired workers who have been on strike since late May. The carmaker, 51 percent owned by Chinese automaker SAIC Motor Corp, has called for more than 1,000 workers to be laid off, triggering protests from the labour union. The message on the banner reads,"Dismissal is murder behaviour which destroys family. Withdraw it immediately!". REUTERS/Lee Jae-Won (SOUTH KOREA TRANSPORT EMPLOYMENT BUSINESS CONFLICT) 

A Maoist family takes part in an anti-government motorcycle rally in Kathmandu June 12, 2009. The protesters were denouncing President Dr. Ram Baran Yadav's decision to reinstate Rookmangud Katawal as the Army chief. Rookmangud Katawal had been sacked by the then Prime Minister Pushpa Kamal Dahal. REUTERS/Shruti Shrestha (NEPAL POLITICS CONFLICT) 

Supporters of Maronite Christian Lebanese Forces party leader Samir Geagea wave flags as they ride on the streets of Beirut after Lebanon's parliamentary election June 7, 2009. REUTERS/Steve Crisp (LEBANON ELECTIONS POLITICS) 

Afghans stop at a check point near Forward Operation Base (FOB) Masum Ghar in Kandahar province, May 24, 2009. REUTERS/Jorge Silva (AFGHANISTAN MILITARY CONFLICT IMAGES OF THE DAY SOCIETY) 

Fans of Italian Serie A soccer team Inter Milan celebrate after their team won the 17th league title, in Duomo square downtown Milan May 16, 2009. Inter Milan retained their Italian Serie A soccer league title on Saturday after AC Milan lost at Udine. REUTERS/Alessandro Garofalo (ITALY SPORT SOCCER IMAGES OF THE DAY) 

Afghans ride a bike as a U.S Marine patrols a village in the Golestan district of Farah province, May 1, 2009. REUTERS/Goran Tomasevic (AFGHANISTAN CONFLICT MILITARY IMAGES OF THE DAY) 

Mamta, 9, rides pillion with her groom Ram Singh, 14, after their wedding in Biaora, in India's central Madhya Pradesh state in this April 22, 2009 picture. A large proportion of women in India were married when they were still children, a study has found, and researchers warned that such unions carried higher risks of unwanted pregnancies and female sterilization. Nearly all the women who were married before they reached the legal age of 18 reported that they used no contraception before they had their first child, according to the study, which was published in The Lancet. Picture taken April 22, 2009. REUTERS/Raj Patidar (INDIA SOCIETY IMAGE OF THE DAY TOP PICTURE) 

Mamta (2nd L), 9, rides pillion with her groom Ram Singh (2nd R), 14, after their wedding in Biaora, in India's central Madhya Pradesh state in this April 22, 2009 picture. A large proportion of women in India were married when they were still children, a study has found, and researchers warned that such unions carried higher risks of unwanted pregnancies and female sterilization. Nearly all the women who were married before they reached the legal age of 18 reported that they used no contraception before they had their first child, according to the study, which was published in The Lancet. Picture taken April 22, 2009. Reuters/Raj Patidar (INDIA SOCIETY) 

A man and children ride on a scooter in Mumbai April 5, 2009. REUTERS/Arko Datta (INDIA SOCIETY) 

A couple ride a motorcycle outside Vietnam's first oil refinery Dung Quat, in the central Quang Ngai province, February 21, 2009. REUTERS/Kham (VIETNAM) 

Men transport a live pig on the back of their motorcycle in Moung Russey, located in Cambodia's western Battambang province February 10, 2009. REUTERS/Adrees Latif (CAMBODIA) 

Armed Forces of the Democratic Republic of Congo (FARDC) soldiers on motorbike pass by UN peacekeepers from Uruguay outside the city of Goma, eastern DRC, December 4, 2008. REUTERS/Peter Andrews (DEMOCRATIC REPUBLIC OF CONGO) 

Romanian officers participate in a Frontex border check exercise at Sculeni border point, between Romania and Moldova, 430 km (267 miles) northeast of Bucharest October 28, 2008. Officers from Frontex, an European Union agency that coordinates the operational cooperation between member states in the field of border security, will work with Romania's border authorities over the coming weeks on issues regarding the European Union eastern border. Picture taken with a fish-eye lens. REUTERS/Bogdan Cristel (ROMANIA) 

A Thai soldier stops a motorcycle at a checkpoint in the disputed border area with Cambodia, near the Preah Vihear temple, in Si Sa Ket province, northeast of Bangkok, October 16, 2008. Thai and Cambodian military commanders held talks across their disputed border on Thursday after the most serious clash in years left two Cambodian soldiers dead and 10 Thais in Cambodian hands. REUTERS/Chaiwat Subprasom (THAILAND)