2026 Argon 18 Sum Shimano Ultegra Di2
Argon 18All images on this page are used for illustrative purposes only. Actual bike specifications may vary depending on country and assembly options available.
Please refer to the Features and Configurations section below for options available in your region.
Features
Shimano Ultegra Di2 R8150
With lightning-fast, accurate, and reliable shifting performance, Ultegra Di2 puts riders in complete control and ensures a seamless interface between the cyclist and bike.

Scope R4
Weighting 1,570g, the Scope R4 wheelset comes with a 45mm deep rim and is ideal for allround riding & racing.

Vittoria Corsa N.EXT TLR 28mm
Built for speed, the Corsa N.EXT Tubeless-Ready in 28c is optimized for maximum performance. It delivers aero efficiency, low rolling resistance, and confident cornering grip with durability and puncture protection.
- Frame:
- SUM
- Fork:
- SUM specific
- Headset:
- FSA Headset NO.55R 1.5'' + 3D
- Integrated Cables:
- Yes
- Wheels:
- Scope R4
- Tires:
- Vittoria Corsa N.EXT TLR 28mm
- Tire Clearance:
- 30C (32mm)
- Bottom Bracket:
- BB Ultegra SM-BB72
- Rear Derailleur:
- Shimano Ultegra Di2 R8150
- Crankset:
- Shimano Ultegra R8100 52/36
- Chain:
- Shimano Ultegra CN-M8100
- Cassette:
- Shimano Ultegra CS-R8100 11-30
- Brakes:
- Shimano Ultegra Di2 R8170
- Rotors:
- Shimano Ultegra RT-CL800 / F:160mm R:140mm
- Shifters:
- Shimano Ultegra Di2 R8170
- Handlebar:
- FSA Energy SCR Compact
- Bar Tape:
- Ciclovation LEATHER TOUCH Tornado Gloss
- Saddle:
- Repente Quasar
- Seatpost:
- SUM specific
- Front Derailleur:
- Shimano Ultegra Di2 R8150
- Stem:
- FSA SMR-II