CERVELO S5 DURA ACE 9100 2018 year54CM MEDIUM SIZE Frame Cervélo S5 Fork Cervélo ALL-CARBON Brakes Shimano DURA ACE 9100 Crank set Shimano DURA ACE9100, 52/36 Casette Shimano ULTEGRA, 11-28T Front derailleur Shimano DURA ACE 9100 Rear derailleur Shimano DURA ACE 9100, 11-speed Gear ratio ...