Paulo Victor Aguilera (top) of Bolivia, Latin American champion of BMX bicycle motocross, or "Bicicros", performs a stunt in Santa Cruz, some 900 km (559 miles) east of La Paz, August 28, 2007. REUTERS/Carlos Hugo Vaca
Paulo Victor Aguilera (top) of Bolivia, Latin American champion of BMX bicycle motocross, or "Bicicros", performs a stunt in Santa Cruz, some 900 km (559 miles) east of La Paz, August 28, 2007. REUTERS/Carlos Hugo Vaca