The De Rosa TT Disc embodies the result of intense research and development work by De-Rosa, aimed to achieve 3 clear objectives: maximum aerodynamics, reduced weight, and greater stiffness. Thanks to De Rosa's tradition in racing frame construction and the experience gained through years of close collaboration with cutting-edge design studios, all angular surfaces have been eliminated. Clearly evident on the rest of the frame is the hard work of optimizing the profiles. Starting with the head tube, perfectly integrated with the handlebar, that sports a completely internal cable routing, continuing with the dynamic line of the top tube and the oblique thinning. Everything runs fast, harmoniously Maximum attention was also paid to the continuous curvature of the vertical tube that is perfectly integrated with the seat stay and the bottom bracket shell: we are in the state of the art of aerodynamic studies.