
RIM GEOMETRY
The RS40's 40mm rim profile was shaped and refined in a bicycle-specific wind tunnel, delivering a meaningful aero advantage on the flats and rolling terrain — an efficient, versatile depth that keeps you fast everywhere, not just on the climbs. The hooked rim design features a modern 24mm internal width and 30mm external width, striking the ideal balance between wide tire support, aerodynamic efficiency, and compatibility with a broad range of tubeless and clincher tires.














