Road World Championships: Wiggins aiming to 'topple' Martin

Sir Bradley Wiggins wants to "topple" three-time world champion Tony Martin in the men's time trial at the Road World Championships on Wednesday.

Briton Wiggins, 34, was second in 2011 and 2013 to Germany's Martin, the man he beat to Olympic gold at London 2012.

Wiggins also said he is aiming to break cycling's hour record next year, German Jens Voigt having set a new record of 51.115km in Switzerland last week.