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| Introduction |
 
Thor Hushovd wins the first cobblestone race of the season on an S2
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“This year Team CSC have benefitted from arguably the most sophisticated bike in the pro peloton” - CycleSport
The S2 is the next generation of the Soloist Carbon. It already had the reputation for being the ultimate pro bike; not surprising, given its long list of victories. But how about comfort? Truth be told, many frames with aero tubing lack in comfort. But at Cervélo, we have been designing aero bikes since our inception, so we have the most experience in building aero frames without sacrificing the traditional focal points of weight, stiffness, strength and comfort.
This may explain why only the Cervélo TestTeam used aero frames at the early season cobblestone races (including Thor Hushovd’s victory at the semi-Classic Omloop Het Nieuwsblad). While for some races the R-series may still be better, to know that the S2 (and the even more compliant S3) excel even on the cobblestones shows you can have all the usual characteristics of a great frame AND aerodynamics on top of it. That’s great news also for non-professionals, as they can potentially benefit even more from improved aerodynamics than the pros (see why in the Aero Savings tech presentation) without sacrificing anything else.
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| Upgrades from S1 |
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Lighter frame – The S1 is very competitive in weight (as a past winner of Liège-Bastogne-Liège, it has to be), the use of carbon fiber allows a further weight reduction. This makes the S2 very competitive in weight even compared to frames without an aero advantage.
Higher bottom bracket and torsional stiffness - While even the biggest pro riders have no complaints about the S1’s stiffness, the S2’s additional torsional stiffness make it track through switchbacks in fast descents even better.
One-position aero carbon seatpost - To save weight, the S2 ships standard with an aero one-position seatpost. But the optional 2-position post will also fit on the S2, ideal for those looking to do the occasional triathlon in a moderately forward position.
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| Highlights |
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Outstanding aerodynamics – Airfoil shapes designed by Cervélo for bicycle speeds, not for airplanes. Features that work, no aero gimmicks that work on a TT bike but not on a road bike.
No compromise - Extremely aerodynamic yet among the lightest frames in the pro peloton and with excellent stiffness & compliance properties.
Aero sloping toptube – Horizontal airfoil cross section for the toptube with 1:15 thickness-to-chord ratio make even the toptube an aero asset.
Stealth aero headtube – Hourglass shape on the sides allow for aero cross section without the need for a nose on the headtube.
Oversized bottom bracket area – Large diameter and smooth, optimized shapes increase bottom bracket stiffness for excellent power transfer from pedal to rear wheel.
ICS2 Internal Cable Stops - To improve the aerodynamics, we modified the cable routing on the S2. Entry through the toptube & Internal Cable Stops on the downtube combine the most aero cable routing with the lowest friction and lowest weight solution (no excess housing inside the frame). This routing is now standard on the S2.
Flexible geometry – The 2-position seatpost (optional) allows you to put your saddle in a 76 degree seattube angle position, ideal for the occasional triathlon. As the S2 is more aero than most of the full TT bikes on the market, this offers great triathlon performance without the need for a second bike. Of course, for regular triathlon use, a triathlon bike is still a better choice, thanks to the 78 degree seattube angle and dedicated triathlon geometry.
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| TrueAero™ |
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| Airplanes require different airfoils than bicycles. Sounds logical, but many companies are so proud to say their airfoils come from the National Advisory Committee on Aeronautics (NACA). So did we, 13 years ago. But now, we design our own specific airfoils, and it has led to significant improvements. It’s one of the reasons why we spend weeks and weeks in the windtunnel each year, not hours (if any) as is customary in the industry. When you have the most and the best engineers working on aerodynamic improvements and you give them more time to play in the windtunnel sand box than anybody else, you end up with faster bikes. Simple.
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| Smartwall™ for Carbon |
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Patent-pending technology from our carbon materials and manufacturing group, Smartwall elaborates on the Squoval tubeshape. With the sides far away from the center plane more important, we concentrate more material there to increase the benefit.
Strips of High and Ultra-high modulus carbon stiffen the sides of the main tubes to resist lateral bending. These strips are feathered in to properly transfer the loads from the joints into these tubes.
Finally, we add Kevlar to the headtube/downtube area for industry-leading impact strength.
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| Tech presentation - What Function? |
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The S2 is based on the FM28 platform, which first spawned the Soloist Carbon. This tech presentation details the developments of this project, including:
- the lead-up to the project,
- the goals,
- design challenges,
- R&D supporting the design decisions,
- the prototyping,
- the lab & road testing.
Our goal is to give you a real insight into how the Soloist Carbon came to be, why the details on the bike are as they are and what function this form follows. To view, click here.
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| Reviews |
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| Geometry |
The two seattube angles (73 & 76 degrees) can only be obtained with the optional two-position seatpost. With the single-position seatpost, only the 73 degree angle should be considered
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No custom Cervélo is needed even for the most demanding pros, that’s our conclusion after supporting hundreds of the world’s best athletes. The reason we don’t need customs where other bike companies do lies in our unique reach-based geometry. For an exhaustive explanation on why 6 Cervélo sizes fit more people than 12 “normal” sizes, check out our geometry tech presentation.
| 73 Degree Seattube Angle (rear facing seatpost position) |
| Size | Wheel Size | Head Tube Angle | BB Drop | Top Tube | Head Tube Length | Front Center | Rear Center | Stand Over Height | Stack | Reach |
| 48 | 700c | 72.5° | 68 | 515 | 100 | 547 | 399 | 709 | 502 | 361 |
| 51 | 700c | 73° | 68 | 530 | 120 | 558 | 399 | 729 | 522 | 370 |
| 54 | 700c | 73° | 68 | 545 | 140 | 573 | 399 | 746 | 541 | 380 |
| 56 | 700c | 73° | 68 | 565 | 160 | 593 | 399 | 764 | 560 | 394 |
| 58 | 700c | 73° | 68 | 580 | 180 | 608 | 399 | 781 | 580 | 403 |
| 61 | 700c | 73° | 68 | 592 | 200 | 620 | 399 | 800 | 599 | 409 |
| Note 1: | The standover height is measured to the toptube directly above the bottom bracket. |
| Note 2: | The above headtube lengths are for integrated headsets. To compare to non-integrated headtubes, deduct 20mm from the above lengths to adjust for the stack height needed for non-integrated headsets. |
| 76 Degree Seattube Angle (forward facing seatpost position) |
| Size | Wheel Size | Head Tube Angle | BB Drop | Top Tube | Head Tube Length | Front Center | Rear Center | Stand Over Height | Stack | Reach |
| 48 | 700c | 72.5° | 68 | 488 | 100 | 547 | 399 | 709 | 502 | 361 |
| 51 | 700c | 73° | 68 | 502 | 120 | 558 | 399 | 729 | 522 | 370 |
| 54 | 700c | 73° | 68 | 516 | 140 | 573 | 399 | 746 | 541 | 380 |
| 56 | 700c | 73° | 68 | 535 | 160 | 593 | 399 | 764 | 560 | 394 |
| 58 | 700c | 73° | 68 | 549 | 180 | 608 | 399 | 781 | 580 | 403 |
| 61 | 700c | 73° | 68 | 560 | 200 | 620 | 399 | 800 | 599 | 409 |
| Note 1: | The standover height is measured to the toptube directly above the bottom bracket. |
| Note 2: | The above headtube lengths are for integrated headsets. To compare to non-integrated headtubes, deduct 20mm from the above lengths to adjust for the stack height needed for non-integrated headsets. |
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| Frameset Components |
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| Warranty |
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| Every Cervélo frame comes with a limited lifetime warranty for the original owner. For full details on this warranty, please click here. Please note that frames not purchased from an authorized retailer are not covered by any warranty. For a list of authorized retailers, please check our retailer locator below. |
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| Owner's Manual |
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| Here you will find Cervelo’s general owner’s manual. Additional information, as well as fitting information to optimize performance (as opposed to fitting information for safety purposes described in the manual) can be obtained from your Cervelo retailer. To read the owner’s manual, please click here. |
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