Wind tunnel hours measured in the thousands shaped the Cervelo S5 into one of the most aerodynamically refined production road frames available. The 2023 S5 Red eTap AXS arrives in Sapphire Ice with SRAM's flagship wireless groupset mounted to a platform that Cervelo developed alongside professional WorldTour teams. The frame's truncated airfoil tube profiles balance drag reduction with crosswind stability, while integration points hide cables and hoses from the wind entirely. Every surface that faces airflow received attention during development, from the seat tube's interaction with the rear wheel to the fork legs' transition into the down tube. The resulting frame slices through air with measurably less resistance than conventional road designs, and those savings compound over the duration of a race or long training ride.

High-modulus carbon fiber in a monocoque construction positions material where stress concentrates during hard accelerations and cornering loads. Cervelo's BBright bottom bracket standard places the drive-side bearing outboard of the shell, widening the stance for increased lateral stiffness without adding weight to the junction. The dropped seat stays reduce aerodynamic drag while allowing the rear triangle to absorb road vibration that would otherwise travel directly into the rider. A tapered head tube—1-1/8" at the top transitioning to 1-3/8" at the crown—paired with the full-carbon fork maintains steering precision under braking loads and when sprinting out of the saddle.

SRAM Red eTap AXS handles shifting through a wireless electronic system that eliminates cable stretch and housing compression from the equation. The rear derailleur responds to paddle inputs within milliseconds, and the system's Orbit fluid damper keeps chain tension consistent over rough surfaces. A 12-speed cassette pairs with the Red crankset featuring a 48/35T chainring combination that covers everything from flat sprints to extended climbs. Red hydraulic disc brakes provide stopping power through flat-mount calipers and 160mm rotors front and rear, with lever reach and contact point adjustable without tools. The brakes deliver consistent modulation in wet and dry conditions alike, and the rotor size handles heat buildup during extended descents.... Read More