Cycling has been driving everyone into a thigh-strengthening frenzy this year. But it's been all the rage for years amongst hard nuts. Take a look at some of the routes we picked out from Classic Cycling Race Routes: The Toughest 52 European Challenges. Are your thighs up for it?

Classic Cycling Race Routes: The Toughest 52 European Challenges, Chris Sidwells

Published by AA Publishing, 2013