The Bianchi Aria Aero 105 Di2 Disc is a pure aerodynamic weapon designed for riders who prioritize speed and efficiency above all else. Derived directly from Bianchi’s wind-tunnel-tested racing department, the Aria is a "true aero" bike, featuring a stiff, aggressive geometry that is also highly popular among triathletes due to its ability to be easily converted for TT use.
This build brings this frame into the modern era by pairing it with the Shimano 105 Di2 12-speed groupset. Unlike the Infinito (which is for comfort) or the Specialissima (which is for climbing), the Aria is built to hold 40km/h+ on the flats, utilizing deep-section tubes and an integrated profile to minimize drag.
Frameset & Geometry
Frame: Aria Aero Carbon, Mechanical/Electronic shifting compatible, PressFit 86.5x41mm BB, Integrated seat clamp, 12x142mm Thru-Axle.
Fork: Full Carbon Aero, 1.1/8">1.4" Tapered, Flat Mount, 12x100mm Thru-Axle.
Design: Inspired by the Aquila TT bike, featuring a dropped seatstay design and a "cut-out" seat tube that shields the rear wheel from turbulence.
Cockpit: Velomann Aero Compact, Alloy (Standard stem/bar for easier adjustability).
Seatpost: Aria Full Carbon Aero, adjustable head (allows for a forward "Triathlon" position).
Color: Celeste CK16 Glossy (The iconic Bianchi look).
Drivetrain & Brakes
Shifters: Shimano 105 Di2 ST-R7170, 2x12-Speed (Electronic).
Front Derailleur: Shimano 105 Di2 FD-R7150.
Rear Derailleur: Shimano 105 Di2 RD-R7150, 12-Speed.
Crankset: Shimano 105 FC-R7100, 50/34T
Bottom Bracket: Shimano SM-BB72-41B, PressFit.
Cassette: Shimano 105 CS-R7101, 11-34T.
Chain: Shimano CN-M7100.
Brakes: Shimano 105 BR-R7170 Hydraulic Disc.
Rotors: Shimano SM-RT70 CenterLock, 160mm (Front & Rear).
Wheels & Tires
Wheelset: Fulcrum Racing 400 DB (35mm rim depth, Alloy, Tubeless Ready).
Hubs: Fulcrum, CenterLock, 12mm Thru-Axle.
Tires: Vittoria Rubino IV G2.0 Graphene, 700x28c.
Max Tire Clearance: 28mm (Official) / 30mm (Depending on rim width).
Key Technologies
Total Aero Integration: Every tube on the Aria—from the fork blades to the seatstays—features an airfoil shape to reduce the rider's drag coefficient.
105 Di2 Shifting: Provides lightning-fast, semi-wireless gear changes. The lack of mechanical cables reduces maintenance and ensures the bike looks as sleek as it performs.
Triathlon Ready: The Aria's geometry and seatpost design make it one of the best road bikes for "Clip-on" aero bars. It is widely used by amateur triathletes who want one bike for both road racing and multi-sport events.
Aggressive Racing Geometry: The Aria features a very low head tube and a steep seat tube angle, encouraging a "slammed" position that is ideal for solo breakaways or high-speed criteriums.
Flat Mount Discs: Ensures consistent braking even at high speeds, which is essential for an aero bike that naturally wants to carry momentum on descents.