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.

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, completing the aerodynamic system.

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.

The new S5’s one-piece bar and stem is a big part of the bike’s increase in aerodynamic performance, but aerodynamic improvements are limited if the bike doesn’t fit you perfectly.

Details Series S5 Model S5 Sram RED AXS E1 Colorway Five Black Color 2027 Weight 6.74 kg Frame Kit Frame Cervélo All-Carbon, Bayonet S5 Fork Fork Cervélo All-Carbon, Bayonet S5 Fork Headset FSA SL IS2 1-1/8, 36° x 45° / 1-3/8, 36° x 45° Seatpost Cervélo SP34 Carbon Front Thru Axle Cervélo Aero Thru Axle Front, M12x1.5mm, 122mm Rear Thru Axle Cervélo Aero Thru Axle Rear, M12x1.0mm, 169mm Bottom Bracket SRAM DUB Ceramic, BBright Cockpit Integrated Handlebar Cervélo HB19 Carbon Handlebar Width 40cm Stem Length 100mm Drivetrain Groupset SRAM Red 1 AXS E1 — 12-speed Shifters SRAM Red AXS E1 — ED-RED-E1, 12-speed Crankset SRAM Red 1 AXS E1, 50T Aero, DUB, with power meter Crank Length 170mm Rear Derailleur SRAM Red AXS E1 — RD-RED-E-E1, 12-speed Cassette SRAM Red E1, 10-36T, 12-Speed Chain SRAM Red E1 — CN-RED-E1, Flattop, 12-speed Brakes Brake Levers SRAM Red AXS E1 — ED-RED-E1, Hydraulic disc, Flat Mount Brake Rotors SRAM Paceline X Centerlock — RT-PLN-X-A1 Wheels Front Wheel Reserve 42TA, DT Swiss 180 Carbon Spoke, 12x100mm, 24H, centerlock, tubeless compatible Rear Wheel Reserve 49TA, DT Swiss 180 Carbon Spoke, 12x142mm, XDR freehub, 24H, centerlock, tubeless compatible Tires Vittoria Corsa Pro TLR G2.0 700x29c Components Saddle Fizik Arione R1 Light

*Specifications are subject to change.

Frame production date may differ from model release cycle.