Originally this bike had a fixed rear axle, and I adjusted the transmission forward to get the correct chain tension, then adjusted the primary belt with a belt tensioner mounted to the frame. Now that I have added chain tensioners to the frame I no longer need the belt tensioner so I closed the holes I had cut in the inner primary. I then counter sunk the mounting bolt heads of the bearing support (they interfered with the primary), and had the primary covers de-chromed.