Cervelo S5 Dura Ace Di2 ARC 1400 Road Bike

The S5 combines Cervélo's aerodynamic carbon frame with an integrated one-piece carbon cockpit and electronic Shimano Dura-Ace Di2 shifting. The Dura-Ace build includes a 54/40T crankset, 11–34T 12-speed drivetrain and integrated power meter. Cervélo's current official Dura-Ace build uses a carbon Reserve 57|64 wheelset, so the ARC 1400 65 mm wheelset in your specified bike appears to be a dealer/custom build or a different model-year configuration, rather than the current stock Dura-Ace specification.

• Pure Speed
  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.
  
• Aero Aero Aero
  The new S5 is 6.3 Watts faster than its predecessor. These gains are realised primarily at the front end of the bike, but the integration of the asymmetric profiles of the seat tube and rear wheel is 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 optimised 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.
  
• One Peace of Mind
  The new S5’s one-piece bar and stem are 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 Authorised Cervélo Retailer will help you get the right bar/stem combo for no additional cost.
  

• Brand: Cervélo
  
• Model: S5
  
• Bike Type: Aero Road / Race
  
• Frame: Cervélo S5 carbon aero frame
  
• Frame Size: 56 cm
  
• Colour: Lithium
  
• Fork: Cervélo carbon aerodynamic fork
  
• Cockpit: One-piece carbon handlebar/stem
  
• Seatpost: Cervélo carbon seatpost
  
• Groupset: Shimano Dura-Ace Di2
  
• Drivetrain: 12-speed electronic
  
• Crankset: Shimano Dura-Ace FC-R9200-P
  
• Chainrings: 54/40T
  
• Cassette: 11–34T
  
• Power Meter: Integrated Shimano Dura-Ace power meter
  
• Power Meter Accuracy: ±1.5%
  
• Bottom Bracket: Ceramic BB
  
• Wheelset: DT Swiss ARC 1400 DICUT, 65 mm
  
• Wheel Diameter: 700C
  
• Rim Height: 65 mm class / aero deep-section
  
• Tyre System: Tubeless-compatible, depending on the exact ARC 1400 model
  
• Brakes: Hydraulic disc
  
• Rear Axle: Thru-axle
  
• Wheel Size: 700C