Product Description

The **4 composite tubular is Zipp's most popular wheelset ever. It is ideal for time trails, long solo breaks and any application where efficiency and ultimate sustainable top end speed are paramount. The rim shape is multi-patented. The **4 tubular rim offers improved airflow management over a wider range of tire styles and widths while improving cross-wind stability in even severe conditions. The fastest just keep getting faster. It's designed to work with your fork and frame to provide superb aerodynamics over the widest range of conditions using the widest range of frames and forks, and every tire. Time trialists and road racers everywhere have made the **4 the premier choice world wide for good reason. The **4 excels in all events with superior performance proven aerodynamics, durability and superior comfort. The overall lightness of the **4 wheelset is truly amazing, at only ***2 grams (+/- *5g) for the set, the **4 tubular weighs nearly what the **3 tubular weighed only 3 years ago. Each year the **4 package only gets through the improvements made to the Zipp **2 rear and Zipp *4 front hubs combined with Sapim CX-Ray spokes, and improved materials throughout the design. Zipp's exclusive ICT process combined with VCLC technology results in *8mm deep section rims that more than double the lateral stiffness of conventional alloy rims while the weight at the outer edge is up to *5% less than that of traditional rims.