The new RACING SPEED 35 is perhaps the most versatile wheel in the line-up & offers serious performance advantages in almost every situation. Light enough to climb the steepest gradients reactive enough to please the strongest sprinter & aerodynamic enough to save precious energy this wheel is the perfect do-it all performance wheel. Development of the Racing Speed 35 was more complex than simply shrinking the current 50mm rim profile & adapting spoke length to match. Fulcrum engineers developed a rim structure completely dedicated to this new platform. In developing this new wheel system engineers needed to take into account the completely different loads & stresses associated with differing measurements weights & profiles. Working diligently to develop new carbon layup specifically for this profile the engineers were able to produce a lower profile & extremely lightweight rim whose stiffness rivals that of its higher profile counterparts. At only 1230 grams (530+700) it is light enough to please even the most weight conscious athlete but surprisingly is as stiff & reactive as much heavier wheels. Rim Dynamic Balance. Patented Carbon molding technique. CULT ceramic bearing technology offering the smoothest ride with the least amount of rolling resistance available. 9 times smoother than traditional bearings. Handmade by Fulcrum technicians manually inspected & certified by Fulcrum staff. Fulcrum quality guaranteed.