Prepare the crust by mixing graham cracker crumbs, granulated sugar, and melted butter. Press into a 9-inch springform pan and bake at 325°F for 10 minutes.
Make the cheesecake filling by beating cream cheese until smooth, then adding brown sugar and vanilla. Mix in eggs one at a time, then add sour cream and cinnamon.
Chop pecans and set aside. Assemble the cheesecake by pouring half the filling over the crust, adding half the pecans, then the remaining filling, and topping with the rest of the pecans and maple syrup.
Bake at 325°F for 55-60 minutes until the center is slightly jiggly. Cool in the oven for 1 hour.
Cool to room temperature, then refrigerate for at least 4 hours or overnight before serving.