Proven aerodynamics and an extremely lightweight are combined in the new Fast Forward FFWD F4R Carbon Tubular Wheelset, making it the best choice for an all-round wheel set! FFWD DARC Technology FFWD DARC technology is standard on the most aerodynamic FFWD models F9R and F6R. Adding this technology to the 45mm tubular rim makes the new F4R faster. FFWD DARC DARC stands for ‘Double Arc’ which is the profile of the rim. It compresses air on the rim to create a faster airflow which reduces the drag behind the wheel. FFWD Hubs The best hubs based on price and quality. High-end hubs with the least rolling resistance keep on going when you give them a spin.
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