Pinarello F5 105 Di2 Most Ultrafast
In stock at 2 shops in Boston and New York City
Prices and stock checked Oct 22.
Where to buy
2 shopsAbout this bike
The Pinarello F5 105 Di2 MOST Ultrafast Bike is Pinarello's all-around road bike for riders who want race-derived performance without stepping into the brand's flagship tier. Pinarello has been building bikes in Treviso, Italy since 1952, and the F-series carries that pedigree into a UCI-approved carbon package designed to handle climbing, descending, sprinting, and sustained endurance riding from the same machine. The Torayca T700 UD carbon frame is built around Pinarello's "All-Round Performance" ethos — aggressive enough for serious riders while remaining manageable across a full day in the saddle. Nine sizes from 43cm to 59.5cm cover a wide range of riders, and this MOST Ultrafast build arrives with 45mm-deep carbon wheels as standard.
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Pinarello's TiCR™ internal cable routing system runs every brake hose and shifting cable through the frame and the E-TICR elliptical steer tube, eliminating external clutter from hood to hub. The elliptical profile isn't cosmetic — it increases torsional rigidity in the head tube area compared to a round steer tube of similar weight, translating to more precise steering on fast descents and technical corners. The F-Series Onda carbon fork carries Pinarello's signature asymmetric blade design, with differing left and right profiles that account for the unequal lateral forces produced by disc brake caliper placement and drivetrain loading. Underneath, the aero keel bottom bracket and integrated seat clamp contribute to the frame's structural efficiency. Tire clearance extends to 32mm, accommodating wider rubber for rough pavement, extended training days, or rides where grip matters more than outright speed — without requiring a wheel swap.
The MOST Ultrafast 45 wheelset defines this build. MOST is Pinarello's in-house component brand, and the Ultrafast 45 is a 45mm-deep carbon disc wheelset — front and rear — designed to pair with the F5's geometry and clearances. At $6,200 for a complete bike, 45mm carbon disc rims are an unusual…
