Wide profile (20mm inner width) for more lateral stiffness and improved tire profile Rear Off Center Rim (OCR) design reduces wheel dish to balance spoke tension Precision machined sidewalls Phantom Flange hidden Jbend hub design create a sleek, aero profile Ratchet Driver with 36point engagement Premium quality cartridge bearings throughout Laced with black double butted DT Aero Comp spokes and brass spoke nipples