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Argon 18 Sum Pro Shimano Ultegra Di2 R8150 12v

Top of the rangeAeroCarbon700c
Argon 18 Sum Pro Shimano Ultegra Di2 R8150 12v, side view
Black

Argon 18 Sum Pro Shimano Ultegra Di2 R8150 12v

aero road bike, carbon frame, 700c wheels, 2×12 drivetrain, top of the range equipment

Key specs

Model year
2026
Frame
Carbon
Wheelset
700c · DT Swiss ARC1400 Dicut Wheelset
Drivetrain
2×12
Groupset
Shimano Ultegra Di2
Brake model
Shimano Ultegra Di2 R8170
Seatpost
SUM specific (included with frameset)

Character

The bike at a glance: the ground it is made for, how it handles, its gears and its equipment, beside the other bikes of its kind.

« Road bike average gearing, very high equipment. »

Not enough data yet for this chart: it fills in as soon as the specs are in.

Not enough data yet for this chart: it fills in as soon as the specs are in.

Gearing

  • This bike: Sum Pro Shimano Ultegra Di2 R8150 12v14 km/h - 54 km/h
  • Average of other aero road bikes13 km/h - 54 km/h
Easiest gear (climbing)Hardest gear (descending)

From 14 km/h in its easiest gear to 54 km/h in its hardest.

Equipment level

Not enough data yet for this chart: it fills in as soon as the specs are in.

Equipment: top of the range for its category.

Equipment score: 85/100 (frame, groupset, wheels, suspension).

Spec sheet

Every value is read on the brand’s page; hover it to see its source and date.

Ride type

Ride type
Aero

Frame and fork

Frame
Carbon
Max tyre clearance
32 mm
Bottom bracket
CeramicSpeed BB86 Shimano Coated
Cable routing
Fully integrated

Drivetrain

Groupset brand
Shimano
Groupset
Shimano Ultegra Di2
Shifting
Electronic, wired
Chainrings
2
Gears at the back
12
Chainring teeth
Shimano Ultegra R8100 52/36
Cassette
Shimano Ultegra CS-R8100 11-30
Rear derailleur
Shimano Ultegra Di2 R8150
Shifters
Shimano Ultegra Di2 R8170

Brakes

Brakes
Hydraulic disc
Brake model
Shimano Ultegra Di2 R8170
Front rotor
160 mm
Rear rotor
140 mm

Wheels and tyres

Wheel size
700c / 29"
Wheelset
DT Swiss ARC1400 Dicut Wheelset
Rims
Carbon
Tyres
Vittoria Corsa Pro TLR 28c
Tyre width fitted
28 mm

Cockpit and seatpost

Handlebar
Ciclovation LEATHER TOUCH Tornado Gloss
Seatpost model
SUM specific (included with frameset)

Weight

Weight
Being updated

Spec sheets read at: argon18.com

The range

Its comparisons

Comparable road bikes

See all

Who is it for?

The sports the brand announces, and the features that go with them.

  • Cycling

    • Ride type: Aero
    • Groupset: Shimano Ultegra Di2
    • Max tyre clearance: 32 mm

Frequently asked questions

What kind of riding is the Argon 18 Sum Pro Shimano Ultegra Di2 R8150 12v made for?

Aero, according to the brand.

How wide a tyre fits the Argon 18 Sum Pro Shimano Ultegra Di2 R8150 12v?

Up to 32 mm, according to the brand.

Does the Argon 18 Sum Pro Shimano Ultegra Di2 R8150 12v have electronic shifting?

Electronic, wired, according to the brand.

Specs updated on Nov 4, 2026Some values come from third-party spec databases, cross-checked with the brand where it publishes them.Report an error