Based around our Dispersive Effect Termination (DETTM) rim profile, the BLACKLABEL rims are optimized to lower drag and provide unmatched stability in crosswinds when used with modern, wider tire profiles. The rims feature a 21mm tubeless ready rim channel and a precision crafted Single Super Bubba X hubs that lowers rolling resistance, enhances lateral stiffness and improves the overall ride quality to give you every advantage in your search for speed.