Aerfast.4 Pro Disc Ultegra Di2 2x12

Frame: Storck Aerfast.4 Pro Disc
Fork: Storck Aerfast.4 Pro Disc
Colour: Radioactive Green/White
Material: Carbon Fiber Reinforced (CFR)/Unidirectional (UD)
Bottom bracket: Pressfit™ diameter 41x86.5 mm
Headset: Aerfast.4
Handlebar stem unit: RBSU Aerfast.4
Handlebar tape: Storck
Seatpost: Storck Aerfast.4 Carbon
Saddle: Fizik Vento Argo R5
Wheels selectable: DT Swiss ARC 1400 Dicut 50mm or DT Swiss ARC1100 Dicut 50 or 62 mm
Tyres: Conti Grand Prix
Axles: 12/100 mm, 12/142 mm
Rear derailleur: Shimano Ultegra Di2 R8150
Front derailleur: Shimano Ultegra Di2
Brakes/shift levers: Shimano Ultegra Di2 Disc 2x12
Brakes: Shimano Ultegra Disc RT800 160/160 mm
Crank: Shimano Ultegra 52/36
Chain: Shimano Ultegra 12x
Cassette: Shimano Ultegra 12x, 11-30
Weight: from 7.7 kg


Falsities and changes are reserved.

Does our configuration not meet your requirements or do you have questions about the specification?
Contact our team by email or call +49 6126 9536 222

We have developed our new Aerfast.4 without compromising on aerodynamics and lightweight. It is the first aero bike that has achieved a wind tunnel score of 199 watts. This level indicates the effort required to ride at 45 km/h. The new handlebar stem unit also contributes to the result. The handlebar stem unit has a mounting option for a bike computer.

Design Awards:

RedDot Winner 2022:
"The design of the Aerfast.4 succeeds in merging the characteristics of a road bike with new aerodynamic properties, creating a bike that is both powerful and stable."

German Design Award Winner 2023:
"With the extremely streamlined and super-light Aerfast.4 Pro, Storck once again sets standards. The claim to dynamism and speed is strikingly underlined by the striking Radioactive Green paint finish and makes the racer even more of an eye-catcher."

Velomotion Readers' Choice 2022, 1st Place Road Highend:
"If you're into extravagant looks and plenty of speed, the Storck Aerobike is just the ticket. Not only the color and shape are likely to attract attention, but also the attractive price. The somewhat playful geometry should add an extra dose of fun."