CERVELO S5 SHIMANO ULT DI2

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SURVIVAL OF THE FASTEST

The S5 prioritizes aerodynamic performance and stiffness, making it a platform preferred by the fastest sprinters in the world. Don’t think it’s a one-trick pony, though—despite the lateral stiffness, the S5 delivers an incredibly comfortable ride. You’ve no doubt noticed the now-iconic V-Stem. We optimized that shape to deliver the best possible performance in the wind, hid the cables inside, and make enough bar/stem/stack options to fit just about anyone.

When you climb aboard an S5, you won’t just go fast, you’ll feel fast. The frame stiffness, geometry, layup, and tube shapes combine to make a bike that’s comfortable enough to spend all day off the front, but will respond to a last-second acceleration better than anything else. It’ll clear 28mm tires, too, to allow you to fit the newer crop of wider rim/tire combos that help you eke out even more aero advantage.

True Aero

TrueAero combines specific tube shapes, sizes, and design features to improve aerodynamic flow across the bike. The application of TrueAero is tailored specifically for each of our bikes and their intended uses. 

Extended Seat Tube Cutout

Our Extended Seat Tube Cutout is a close fitting curve in the seat tube, which shields the leading edge of the rear wheel to significantly improve aerodynamic performance.

BBright

Cervelo developed BBright; to take advantage of the fact that oversized frame tubes are stiffer and lighter. With the BBright system, larger-sized tubes are used in the seat tube, down tube, and lefthand chain stay. The benefit is increased stiffness and pedalling efficiency in a lighter weight frame. BBright is compatible with all major bottom bracket standards.

Less drag, more speed.

Aerodynamics are critical to engineering a fast bike: aero drag accounts for as much as 90% of the overall resistance affecting a rider. Using special frame tube shapes and design features, we improved the aerodynamics of the S5 Disc so you can reap the benefits of reduced drag. 

The new S5 is 42 grams faster than its predecessor - that's the equivalent of 5.5 watts.

No wasted effort. 

The stiffness of the S5 is a sprinter's dream. Using a combination of material, shape, and lay up, we engineered the S5 to be stiffer at the head tube, for stable and predictable handling, and at the bottom bracket, so that more of your power goes into turning the rear wheel.

1. 13% increase in headtube (torsional) stiffness over the previous S5
2. 25% increase in bottom bracket stiffness over the previous S5

Fit for you.

You'll be able to find your perfect fit on the S5, with six stem lengths, four bar widths, 5° of rotation, and up to 32.5mm of stem spacers.

• Color	Sapphire/Ice
  Fork	Cervélo All-Carbon, Tapered S5 Fork
  Headset	FSA IS2 1-1/8 x 1-3/8
  Seatpost	Cervélo SP20 Carbon
  Left Shifter/Brake	Shimano Ultegra, R8170, 12 speed
  Right Shifter/Brake	Shimano Ultegra, R8170, 12 speed
  Rear Derailleur	Shimano Ultegra, R8150, 12 speed
  Front Derailleur	Shimano Ultegra, R8150, 12 speed
  Brake Calipers	Shimano Ultegra
  Thru Axles	Cervélo Aero Thru-Axles, 12x100/142
  Crankset	Shimano Ultegra R8100, 52/36T, 12 Speed
  Bottom Bracket	Ceramic Speed, BBright for 24mm spindle
  Handlebar	Cervélo HB14 Carbon
  Stem	Cervélo ST35 Carbon
  Saddle	Selle Italia NOVUS BOOST EVO SuperFlow Ti
  Cassette	Shimano Ultegra, 11-30, 12 Speed
  Chain	Shimano M8100, 12 speed
  Front Wheel	Reserve 52, 25.4 IW, Zipp ZR1 ST, 24H, centerlock, tubeless compatible
  Rear Wheel	Reserve 63, 24.4mm IW, Zipp ZR1 ST,12x142mm, HG freehub, 24h, centerlock, tubeless compatible
  Tire	Vittoria Corsa TLR G 700x28c