OK, let's start with the center cylinder. Sacle it down so it's pretty thin and then duplicate it and place the duplicate behind it. To duplicate it, just select it, hold down shift and the drag.
Now using some extrudes and insets on the front cylinder, make the shape shown in the picture. There will be a hole in the front of the cylinder and we will use that for the emblem. Delete half of the cylinder. Ok, now leave that for now.
Now let's do the inner ring. Round of the front of the ring by pulling the edge loop forwards a little and then delete half of the ring.