Zipp 303 XPLR SWWith the 303 XPLR wheels, the Americans from Zipp are once again breaking new ground. In recent years, gravel races have become significantly faster thanks to better material and increasing professionalization. With average speeds of 35 km h and more not uncommon, aerodynamics are playing an increasingly important role. Zipp has taken this development into account and, with the 303 XPLR, has built its fastest wheels specifically for gravel tires.