Riders pile-up at the start of the Moto2 race during the Catalunya Grand Prix in Montmelo, near Barcelona, July 4, 2010. The Moto2 event was marred by a mass pile-up on the first bend and won by Japan's Yuki Takahashi on a Tech 3, after race leader Andrea Iannone was forced to take a ride-through penalty for overtaking when the yellow flag was out. He finished 13th.REUTERS/Albert Gea (SPAIN - Tags: SPORT MOTOR RACING)