The newest Titans come with a great thumb screw / jog wheel for adjusting tension. Ant0ny the creator of the original file used a modified alan wrench to adjust tension sense the tensioner was just a hex screw. This motor mount allows extra room for the included thumb screw. Thumb screw wouldn't fit otherwise.
Original design by Ant0ny here:
UPDATE: I added a version with wire management. I replaced my motor with a lower profile motor so I needed a new way to add strain relief. I took from this part here designed by Big-E and added it to this motor mount: