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CFR -CYCLONIC FLOW ROTOR TECHNOLOGY Cyclonic Flow Rotor (CFR) was designed to create cyclonic airflow, which significantly increases air around the rotor, beneath and around the spool, with every turn of the handle

The carbon fibers selected for the outer diameter of the rim prioritize strength and durability to withstand impacts from the road, while the inner diameter of the rim uses higher modulus fibers to maintain consistent spoke tension under dynamic riding loads

But these performance numbers cant be looked at in a vacuum like that

This helmet is fairly light, well-ventilated, and strikes us as one of the most versatile options on the market