 The number of riders allowed per squad was nine , therefore the start list contained a total of 198 riders . From the riders that began this edition , 169 completed the race . The riders came from 34 countries ; France , Spain , Italy , Netherlands , Australia , Belgium and Germany all had 10 or more riders in the race . The average age of all the riders was 29 @.@ 45 , with 19 @-@ year @-@ old Danny van Poppel ( Vacansoleil – DCM ) as the youngest rider , and 41 @-@ year @-@ old Jens Voigt ( RadioShack – Leopard ) the most senior . Cannondale was the youngest team and Saxo – Tinkoff the oldest . 
