TheCannondale Synapse/Caad8 Mech HangerGenuine Cannondale Derailleur Hanger / Dropout, KP255 Cannondale Synapse/Caad8 Mech Hanger Features Compatibility: CAAD8 2013, 2014 Synapse 2013, 2014 CAADX Quick Slice 2015 CAAD12
Best Price: £17.99 from Leisure Lakes Bikes