The 2026 Cervelo S5 frameset is the fastest road platform Cervelo has built, and the same bike Team Visma races at the front of the WorldTour. It suits riders who race, sprint or simply want the quickest aero road bike available as the base for a custom build. This generation is 6.3 watts faster and 124g lighter than the outgoing S5. The gains come mostly from a deeper head tube and fork legs, the signature bayonet fork and the new HB19 one-piece carbon bar and stem, which runs 4cm narrower at the hoods than the drops so you hold an aero position naturally. All cabling is fully hidden, and the frame clears tyres up to 34mm. Key features 6.3W faster and 124g lighter than the previous S5 Bayonet fork and V-stem with fully internal cable routing HB19 one-piece carbon handlebar and stem, sized to the frame SP34 carbon seatpost and aero thru axles included Tyre clearance up to 34mm Sizes 48 to 61cm Sold as a frameset in the Five Black finish. Talk to us about a full custom build with Dura-Ace Di2 or SRAM RED AXS.