Fabian Cancellara debutes the S3 in
Beijing with an amazing jump to take Bronze |
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Team CSC has long used Cervélo’s slippery
frames for road stages with well-known success and other
companies have more recently gotten into the game.
– cyclingnews.com
Cervélo invented the aero
road frame, and continues to lead the category. Aero road frames
are the most difficult frames to design, as they have to be
everything in one: aero, light, stiff, comfortable. Cervélo has
worked to optimize this balance between the various requirements
since its inception 13 years ago.
For the S3, the engineers at vroomen.white.design used the R3
seatstay technology, rotated the stays 90 degrees and gave them
a proper Cervélo aero shape. This reduces the weight, increases
the vertical compliance and improves the aerodynamics. Sounds
simple, but the structural design is extremely complex, which is
why only Cervélo has such stays. The chainstays were also
redesigned to optimize aerodynamics. Finally, the cable routing
system (ICS2) is the first to have cable entries through the top
of the toptube without sacrificing shifting performance. |
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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.
Light, but efficient
– Sub-1000g yet with an exclusive Cervélo lay-up design to create
class-leading stiffness in the bottom bracket (for efficient power
transfer) and in torsion (for excellent handling)
Vertically compliant
– Seatstays as thin as on the R3, but rotated 90 degrees and
reshaped for aerodynamics. Light, comfortable and aero, the best in
aero road bike engineering.
Perfect balance –
Aero, light, stiff and comfortable, the S3 works. Several companies
make aero road bikes, but only the Cervélo aero road bikes were used
extensively at the hilly Olympic road race, a testament to their
balanced approach.
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
– Entry through the toptube & Internal CableStops on the downtube
combine the most aero cable routing with the lowest friction and
lowest weight solution (no excess housing inside the frame).
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 S3 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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Lighter
frame – The S2 is light, the S3 is
amazingly light. Aero benefits without a weight penalty when
compared to most frames, with the S3 you can have your cake and eat
it too.
More aero – The S2
has led the aero road bikes in windtunnel performance until now, the
S3’s new seatstays, chainstays and cable routing make it the newly
crowned king. |
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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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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 - Col de la Tipping Point |
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This tech presentation shows you
when aerodynamics outweigh weight, and when weight is more
important. Note that this presentation references the SLC-SL; the
new S3 has even lower drag numbers with the same weight, and
henceforth the tipping point is at an ever steeper incline. The
presentation can be found
here. |
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.
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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. |
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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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The S3 is available as a Frameset or as listed here,
with the SRAM Red Groupo. Your Cervelo can be built with the groupo
of your choosing if SRAM is not for you. Please
contact Bike Authority
for complete Specifications. | Part | | | Fork |
3T Funda Team | | Seatpost | Cervélo aero carbon | | Specs may change without notice. |
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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 dealer are
not covered by any warranty. |
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Here you will find Cervélo’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 Cervélo dealer. To read the owner’s manual, please
click here. |
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