Carbon Drive CDX Belt, 111t, 1221mm

- Patented carbon cords offer the tensile strength necessary to provide the smooth, greaseless, long lasting ride advantage of a belt driven system (up to double the life of chains)\n- Belt is only compatible with Gates CDX CenterTrack cogs and sprockets\n- For belt sizing chart and other info (can use the same belt for gearing changes up to a max of 4 teeth) visit http://www.gatescarbondrive.com/ or download the Gates Carbon Drive iPhone app for drivetrain calculations and tension analysis\n- Important: Frames must have a split or opening to allow the belt to loop through the rear drive side triangle - design varies by frame builder