MADRID (Reuters) - Hundreds of nude cyclists pedaled around Spanish cities on Saturday to protest against car-clogged streets and demand greater respect for pollution-free transport. With slogans like "one car less" and "bio methanol" painted on their backs, the naked cyclists staged Spain's third annual Ciclonudista or "Nudecycle" in Madrid, Barcelona and Pamplona. The protest was part of world-wide naked bike riding events on Saturday across Europe, North America and South America. "We feel naked when up against traffic because people don't see the bicycle as just another means of transport," said Madrid cyclist Ramon Linaza, wearing only a cycle...