Pinarello F5 105 Di2

The frame is Torayca T700 UD carbon, one step down from the T900 fiber used on the F7 above it in Pinarello's lineup, but it carries the same aero thinking. The downtube is reshaped with reduced thickness to cut drag, and the head tube uses Pinarello's E-TiCR headset design, an elliptical steering tube paired with a headset that runs wider bearings at the bottom and narrower ones at the top. That shape lets Pinarello move the internal cable routing from the sides of the steerer to the front, which narrows the head tube and cleans up the airflow around the cockpit.

Underneath, the F5 uses an Aero Keel bottom bracket, a lower-volume design borrowed from the Dogma F concept that trims material while adding stiffness where the frame needs it most for power transfer. A frontal integrated seat clamp keeps the seat tube junction clean and shields the clamp mechanism from road grit and sweat. The F Onda fork carries a 47mm rake, shaped for the kind of stable, confident steering Pinarello wants on a fast descent, and tire clearance opens up to 32mm, enough room to run a wider tire for comfort without changing the bike's race intent.

Shifting comes from Shimano's 105 Di2 groupset, the brand's entry-level electronic platform, running R7170 shifters and R7150 derailleurs with a 50/34 crankset and an 11-34 cassette. That gearing spans a genuinely wide range for a race bike, wide enough to handle a steep local climb without abandoning a big enough gear for flat, fast group rides. Shimano 105 hydraulic disc brakes with 160mm rotors front and rear give the F5 the same braking hardware found further up Pinarello's road…