The tri-pass multipass bypass track is an option for 1-3/8″ thick doors. It is a heavy gauge precision extruded aluminum track with jump proof smooth rolling tricycle ball bearing hangers.
LE Johnson 111MD Multi-Pass Bypass Track
A 106″ track fits 3-36″ doors. The Hardware set includes nylon wheel hangers and can hold a maximum weight of 150 pounds per panel. It also includes a guide track length and door guides.