Tucking the rear brake under the chainstays kept the P5's silhouette clean, but Cervelo went further by designing a sculpted fairing that wraps the caliper and smooths airflow through one of the most turbulent zones on a time trial frame. The P5 Rear Brake Cover bolts over the hydraulic brake mechanism and creates a continuous surface between the chainstays and seat tube junction, eliminating the aerodynamic penalty of an exposed caliper. Wind tunnel data showed measurable drag reduction with the cover installed versus running the brake uncovered.

The injection molded plastic construction keeps weight minimal while providing enough rigidity to maintain its shape at speed. The matte black finish matches the frame's aesthetic and doesn't reflect light or draw attention to the brake area. Cervelo shaped the cover to work with the specific geometry of the P5's rear triangle, so it sits flush against the frame surfaces and doesn't create gaps that would disrupt airflow or trap debris. The mounting points align with threaded inserts in the frame, and installation uses the machine screws included with the original bike.

These covers take hits during travel, wheel changes, and general handling that eventually crack the plastic or chip the edges. A cracked cover still functions but looks rough and may flutter at speed, and missing chunks compromise the aerodynamic benefit you paid for when you bought a P5. If your original cover has seen better days after years of racing and training, this OEM replacement restores the bike's intended appearance and performance. Note that cover fitment is size-specific to the frame, so verify compatibility with your particular P5 before ordering.