The comfortable aero tubing frame The S2 is the pioneer of carbon fiber aero road frames and already has the reputation for being the ultimate pro bike. That’s not surprising, given its long list of victories.

What about comfort? Truth be told, many frames with aero tubing lack in comfort. At Cervélo, we have been designing aero road bikes for 15 years. We have the most experience in building aero frames without losing focus on weight, stiffness, strength AND comfort. So much so that Thor Hushovd has won cobblestone races on the S2.

The S2 is part of the S-series, our all-round models equally at home in fast solos and hilly terrain. With just a few grams more than the R-series, it offers a true aero advantage.

Experience:
Reduced aero drag to save energy.
A low geometry to put yourself in an aero position.
Proper road bike performance, because an aero focus shouldn’t compromise reduced
weight, BB/torsional stiffness or comfort.

Frameset includes:
Carbon Frame + Fork + Headset + Seatpost

Fork: 3T Funda Team.

Headset: FSA Orbit IS Alloy.

Seatpost: Aero SL.

Weight: 1100 g.

MAIN TECHNOLOGIES - Oversized bottom bracket area: Big volume and fluent form aligns the carbon fibers with the complex loads in this area.

- Smartwall for Carbon: Carbon strength & stiffness depend on the size, shape, material & fiber direction of each of the 300+ pieces of carbon in a frame.

- TrueAero shapes: Long-tail airfoils with a 3:1 ratio or better create the lowest drag. Truncation can be useful, for example if flow interacts with another object. Cervélo was the first to use truncation!

- S2 aero seatstays: Special shape. Profiledesigned in the direction of the airflow (horizontal). Different shape on the inside than on the outside (to deal with the spinning wheel).

- Aero headtube: The narrow section between the bearing reduces the frontal area and thereby the aero drag (which is linearly related to the frontal area). Narrowing this area also improves the headtube's aspect ratio to get closer to a 3:1 airfoil.

- Internal Cable Stops ICS3: With ICS3, Cervélo continues to lead the industry in the internal cables. No housing inside the frame gives crisper shifting & 200 g less weight.  New stainless stell internals with replaceable Teflon liners further reduce the friction.

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