Cervelo S5 Sram Red AXS 2026

The new Cervelo 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.

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. We made nine different size combinations, and when you buy an S5, your Authorized Cervélo Retailer will help you get the right bar/stem combo, for no additional cost.

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.

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 56cm - 0mm

Left Shifter/Brake SRAM Red AXS E1

Right Shifter/Brake SRAM Red AXS E1

Front Derailleur SRAM Red AXS E1

Rear Derailleur SRAM Red AXS E1

Brake Rotors SRAM Paceline X Centerlock

Front Thru Axles Cervélo Aero Thru Axle Front, M12x1.5mm, 122mm length

Rear Thru Axles Cervélo Aero Thru Axle Rear, M12x1.0mm, 169mm length

Bottom Bracket SRAM DUB Ceramic, BBright

Crankset SRAM Red AXS E1, 50/37T, DUB, with power meter 56cm - 170mm

1-piece Handlebar/Stem Cervélo HB19 Carbon 56cm - 40cm /100mm

Saddle Selle Italia NOVUS BOOST EVO SuperFlow Carbon

Cassette SRAM Red E1, 10-33T, 12-SpeedChainSRAM Red E1

Front Wheel Reserve 57TA, DT Swiss 180, 12x100mm, 24H, centerlock, tubeless compatible

Rear Wheel Reserve 64TA, DT Swiss 180, 12x142mm, XDR freehub, 24H, centerlock, tubeless compatible

Tyre Vittoria Corsa Pro TLR G2.0 700x29c Max Tyre Width34mm

Accessories Cervélo Front Computer/Accessory Mount 887, Cervélo Rear Accessory Mount, Hammerhead Karoo 3