Cyclists strip off as they take to the streets of London for the World Naked Bike Ride

There are a total of 200 cities taking part in the ride, including Buenos Aires, Melbourne, Vienna, Sao Paolo, Vancouver, Copenhagen, Paris, Thessaloniki, Tel Aviv and Tokyo.They describe their campaign with a number of themes and objectives, including protest against the global dependency on oil, to curb ‘car culture’, obtain better rights for cyclists and demonstrate their vulnerability on city streets.