vanni's motocross journey started in 2002.urned his passion into a profession and is now one of the most successful stars in the industry. his 200-horsepower bike sees him soaring up to 15 meters off the ground -- but he's always afraid, he says. >> the fear is what drives you to push on. of course, it's very dangerous, but the more you train and the more you jump, the less risk there actually is. the bike becomes something like a third leg. >> his talent brought him fame, money, success and tournaments from brazil to russia. then one day, a taxi ride after a win in moscow changed everything. >> straight away i noticed a strong smell of urine. i snapped at the driver to hurry up and quickly take me to my destination. then i looked into his eyes and saw a man like me. but he was missing his legs. and he was sitting there, in his own urine. >> and from then on, vanni began to help others. >> i gave the driver all the prize money and went up to my hotel room, ashamed of myself. i thought about what i could do to help the world. >

vanni's motocross journey started in 2002.urned his passion into a profession and is now one of the most successful stars in the industry. his 200-horsepower bike sees him soaring up to 15 meters off the ground -- but he's always afraid, he says. >> the fear is what drives you to push on. of course, it's very dangerous, but the more you train and the more you jump, the less risk there actually is. the bike becomes something like a third leg. >> his talent brought him fame, money, success and tournaments from brazil to russia. then one day, a taxi ride after a win in moscow changed everything. >> straight away i noticed a strong smell of urine. i snapped at the driver to hurry up and quickly take me to my destination. then i looked into his eyes and saw a man like me. but he was missing his legs. and he was sitting there, in his own urine. >> and from then on, vanni began to help others. >> i gave the driver all the prize money and went up to my hotel room, ashamed of myself. i thought about what i could do to help the world. >