Belgian Lotte Kopecky defends world road title in thrilling battle
Australia's Brown wins women's time trial gold as crash ends Dygert's chances
Tarling and Dygert among favourites for Olympic cycling gold
Chloe Dygert powers to the World Championship title in road time trial
Valente maintains golden start for USA, Hinze shines for Germany at World Championships
Chloe Dygert wins first world title since career-thretening crash with stunning ride
