8 August 2014 Last updated at 19:14

RideLondon: Laura Trott ready to defend Grand Prix title

Laura Trott says she will give her "best shot" at the defence of her RideLondon Women's Grand Prix title on Saturday.

The Olympic gold medallist, who won the inaugural race in 2013, will be up against fellow Brit Lizzie Armitstead and world road race champion Marianne Vos in a 45-minute race around a 1.3-mile circuit that takes place in St James's Park.

Trott also plans to ride the RideLondon-Surrey 100 event on Sunday with her father.