The Argos-Shimano rider beat Andrea Guardini (Astana) and Andrew Fenn (Omega Pharma-QuickStep) in a sprint to the line at the end of the 121km stage culminating in Istanbul.
Kittel was comfortably stronger than his rivals in the sprint, but the ending meant that here was no drama for overall leader Sayar. He was 41 seconds clear of Eritrea's Natnael Berhane (Europcar) second and Yoann Bagot (Cofidis) rounding out the podium.
Mikhail Ignatiev (Katusha), Benjamin Verraes (Accent) and Javier Megias (Novo Nordisk) masterminded a breakway, which built a lead as large as three minutes, 50 seconds 30km in. But the gap was pulled back slowly. Sensing the stage was slipping away, Ignatiev broke on his own from the trio, but all were hauled back into the peloton to set up a final sprint.
Argos-Shimano and ORICA-GreenEDGE dominated the bunch as the stage was set for a race to the line, and again there was a crash in the final stages to shake up the finish, though on a smaller scale than some of the week's earlier tangles.
Kittel, though, was peerless in the race to the line, while Sayar nestled safely further down the field to bag the title.