S5 Ultegra Di2

The S5 is a sport-wide benchmark for speed and aerodynamic efficiency—with the race results to back it up. From Wout van Aert winning the Green Jersey by the biggest margin of victory in modern history, to Simon Yates riding himself into the maglia rosa, S5’s iconic V-stem and bayonet fork are a fixture at the front of the professional peloton. The new S5 builds on that legacy of speed by getting even faster, evolving the front end, and going on a bit of a diet, making it an even more potent partner for the fastest riders in the world.  The new bike is over 6 Watts faster than its predecessor, 124 grams lighter, and retains the handling, poise, and stability that riders everywhere love. The biggest changes are at the front of the bike, where the most significant aerodynamic performance comes from. The fork legs and head tube got quite a bit deeper, and the all-new, one-piece handlebar/stem builds on the original V-stem concept—and gets even faster.  Cervélo and Reserve co-developed the new Reserve 57|64 Turbulent Aero wheels specifically for use in the S5 frame. The offset of the wheels perfectly matches the asymmetry of the S5 seat tube, and they tuck right into the wheel cut outs. This ensures that air flows smoothly over the entire bike, and Reserve’s Turbulent Aero approach makes them incredibly stable, even in crosswinds. FEATURES: Aero Aero Aero: The new S5 is 6.3 Watts faster than its predecessor. These gains are realized primarily at the front end of the bike, but the integration of the asymmetric profiles of the seat tube and rear wheel are a significant source as well. Cervélo has long been the aerodynamic leader in the peloton, and we’re confident that the new S5 is at least 5 Watts faster than the bikes of our competitors. One-Piece Handlebar/Stem: HB19 uses our “Plus-Four” concept, meaning the dimension at the hoods is 4cm narrower than in the drops (e.g. 38cm/42cm). This approach helps riders maintain a more aero body position while their hands are on the hoods, and provides stability in the drops for descending and sprinting. All bar sizes are UCI-legal, even in light of the most recent regulations change. Not Just Faster. Lighter, Too: Despite an increase in surface area, the new S5 is 124 grams lighter than its predecessor. While the increase in fork and head tube depth added weight, we optimized the layup and hardware to make the system lighter. Reserve 57|64 Designed for S5: The new Reserve 57|64 wheelset was co-developed by Reserve and Cervélo, and designed for use in the new S5. The rear wheel’s asymmetry matches the seat tube, ensuring air flows smoothly over both. The new wheelset is 3 Watts faster than the 52|63 wheels, and weighs the same. SPECS: Frame S5 Carbon Fork Cervélo All-Carbon, Bayonet S5 Fork Rims/Wheels [F] Reserve 57TA, DT Swiss 240, 12x100mm, 24H, centerlock, tubeless compatible [R] Reserve 64TA, DT Swiss 240, 12x142mm, HG freehub 24H, centerlock, tubeless compatible Hubs N/A Spokes N/A Tires Vittoria Corsa Pro TLR G2.0 700x29c Crankset Shimano Ultegra, R8100, 52/36T  Chainrings 52/36T Bottom Bracket FSA, BBright thread together for 24mm spindle Chain Shimano M8100 Front Derailleur Shimano Ultegra, R8150 Rear Derailleur Shimano Ultegra, R8150 Cassette/Rear Cogs Shimano Ultegra, R8100, 11-34T, 12-Speed Shifters Shimano Ultegra, R8170 Handlebars Cervélo HB19 Carbon Stem Cervélo HB19 Carbon Brakes Shimano Ultegra, R8170 w/ Shimano CL800 Centerlock Rotor Pedals Sold Separately Saddle Selle Italia NOVUS BOOST EVO SuperFlow Ti Seat Post Cervélo SP34 Carbon Extras 4iiii Precision Pro, GEN3+ Dual Sided Power Meter, Cervélo Front Computer/Accessory Mount 887, Cervélo Rear Accessory Mount