A quick look at the P3 and P-Series designs allows the viewer to see the similarities, but a closer look demonstrates the aerodynamic refinements that deliver impressive results. Clearly Cervelo has also been able to develop a carbon lay-up to deliver the impressive stiffness and lighter weight, but those are generally internal. Aerodynamic changes can be very subtle but seen in three areas; frontal shapes, transitions from tube to tube and juncture to juncture, with the third being the integration of components and aero accessories- all taken together with proven wind tunnel and CFD testing, but also with respect to how the rider position and physical interaction impact the true overall aerodynamic picture. Cervelo has tested the P-Series at 26g faster than the P3 bare, and 18g faster loaded. Every improvement, every detail, every struggle all serve to create a faster design, with many incremental changes adding up to more speed, delivered more efficiently, saving you watts of effort as you go faster.

There are some key points to mention. While the frame cable routing system is fully internal, and mostly integrated, Cervelo made a strategic decision to allow for the use of any standard stem, allowing for easier service, fit adjustments, and lower cost. The frame itself represents the deep history of Cervelo's engineering: the integrated fork, headtube, Dropped Downtube system, and the sculpted Extended Seattube Cutout that shields the rear wheel, the BBright concept. In addition to the continued development of those engineering feats, Cervelo modified the frame geometry as well to allow for increased stack and reach range. Where many will appreciate the infinite attention to detail is the coordinated storage and hydration features of the P-Series. The toptube Smartpack 400 bag system fills in perfectly behind the sleek cable routing entry, offering small item storage that is easily accessible while riding. The Aerobottle 500 sits flush against the downtube, blending into the seattube at the bottom bracket, with a shape that carries and guides are cleanly off the back. The massively adjustable Cervélo SP23 Carbon Tri Post features a mount off the back for a rear bottle mount.

The disc brake frameset is set-up for 12/100mm front and 12/142mm rear threaded thru-axles. As for build details, you get the fully flexible internal routing system, a braze-on front derailleur is required, and you will need either a direct fit or conversion style BBright bottom bracket for whatever crankset system you'll be using. With this complete Cervelo P 105 bike build you actually get all you need to get rolling without over-investing.