Argon 18 Sum Pro in Titanium / Racing Red, SRAM Red AXS build
Argon 18 Sum Pro, Titanium / Racing Red, Shimano Ultegra Di2
Argon 18 Sum Pro, Crystal Black / Foil, Shimano Dura-Ace Di2
Argon 18 Sum Pro, Crystal Black / Foil
Argon 18 Sum Pro, Crystal Black / Foil, Shimano Ultegra Di2

Argon 18 Sum Pro

378A.1E.1

Regular price£8,400.00
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This bike is available through the Cycle to Work Scheme

Unsure of your size?

Book a sizing appointment in our bike fit studio and get the right fit.

Fast just got faster. The Sum Pro is a refined, premium version of the Sum for riders who want a bike that stands out as much as it accelerates: light, remarkably supple and engaging on twisting roads.

Argon 18 wind-tunnel tested it to match the aero performance of the fastest World Tour bikes while weighing significantly less, with a complete Dura-Ace Di2 bike weighing 6.41kg.

Highlights

  • Pro Level Layup carbon frame
  • Aero performance matched to World Tour bikes at a lower weight
  • Hourglass-shaped headtube and draft-deflecting fork blades
  • D-shaped seatpost with integrated clamp
  • 3D System and Topological Compliance System
  • SRAM Red AXS, Shimano Dura-Ace Di2 and Ultegra Di2 builds

Sizes and fit

Available in XXS (44-46cm), XS (47-50cm), S (51-53cm), M (54-56cm), L (57-59cm) and XL (60-62cm). Each size has its own geometry under the Argon Fit System.

Colours

Titanium / Racing Red and Crystal Black / Foil.

Frameset
  • Frame: Sum Pro
  • Fork: Sum Pro specific
  • Headset: FSA Headset NO.55R 1.5'' + 3D
Wheels and tyres
  • Tyre clearance: 30c (32mm)
Cockpit and contact points
  • Handlebar: Vision Metron 5D ACR EVO
  • Bar tape: Ciclovation LEATHER TOUCH Tornado Gloss
SRAM RED AXS build
  • Wheels: Zipp 454 NSW
  • Tyres: Vittoria Corsa PRO 28-622 TLR, para-black G2.0
  • Bottom bracket: CeramicSpeed BB86 DUB Coated
  • Front derailleur: SRAM Red AXS
  • Rear derailleur: SRAM Red AXS
  • Crankset: SRAM Red AXS Powermeter 48/35
  • Chain: SRAM RED 12S 114L
  • Cassette: SRAM XG 1290 10-33 XDR
  • Brakes: SRAM RED AXS Caliper Set
  • Rotors: SRAM Centerlock Paceline X / F:160mm R:140mm
  • Shifters: SRAM RED AXS Shifter Set
  • Saddle: Repente Prime 3.0
  • Seatpost: Sum specific
Shimano Dura-Ace Di2 build
  • Wheels: Scope Artech A4
  • Tyres: Challenge Criterium RS TLR 28c Black
  • Bottom bracket: CeramicSpeed BB86 Shimano Coated
  • Front derailleur: Shimano Dura-Ace Di2 R9250
  • Rear derailleur: Shimano Dura-Ace Di2 R9250
  • Crankset: Shimano Dura-Ace R9200 52/36
  • Chain: Shimano Dura-Ace CN-M9100
  • Cassette: Shimano Dura-Ace CS-R9200 11-30
  • Brakes: Shimano Dura-Ace Di2 R9270
  • Rotors: Shimano Dura-Ace RT-MT900 / F:160mm R:140mm
  • Shifters: Shimano Dura-Ace Di2 R9270
  • Saddle: Repente Quasar CR Carbon Rail
  • Seatpost: Sum specific (included with frameset)
Shimano Ultegra Di2 build
  • Wheels: DT Swiss ARC 1400 DICUT
  • Tyres: Vittoria Corsa Pro TLR 28c
  • Bottom bracket: CeramicSpeed BB86 Shimano Coated
  • Front derailleur: Shimano Ultegra Di2 R8150
  • 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
  • Saddle: Repente Quasar CR Carbon Rail
  • Seatpost: Sum specific (included with frameset)

Free UK shipping available on all orders, excluding bikes, wheelsets and packages over 10kg in weight e.g. turbo trainers.

Rider cornering on the Argon 18 Sum Pro on a mountain road

Fast Just Got Faster

The Sum Pro refines the Sum into a premium race bike that is light, supple and full of character on twisting roads.

It is built for riders who want outright speed without giving up ride feel.

Argon 18 Sum Pro parked by the roadside

Aero And Lightweight

Wind-tunnel testing shows it matching the fastest World Tour bikes for aero performance while weighing significantly less.

A complete Dura-Ace Di2 build weighs just 6.41kg.

Hourglass-shaped headtube on the Argon 18 Sum Pro

Hourglass-Shaped Headtube

The hourglass headtube and draft-deflecting fork blades smooth airflow around the front of the bike.

CFD-optimised downtube, top tube and seatstay profiles carry that efficiency through the frame.

D-shaped seatpost and integrated clamp on the Argon 18 Sum Pro

D-Shaped Seatpost

The D-shaped seatpost and integrated clamp keep the rear end clean and aerodynamic.

The Topological Compliance System tunes the frame for comfort without losing stiffness.

A perfect fit on the Argon 18 Sum Pro

Not sure what size you need? Want to ensure this Argon 18 Sum Pro fits perfectly from your first pedal stroke?

Book a free sizing appointment in the Fit Studio at Velo Edge.

Experience The Velo Edge Advantage

5* Reviews

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Expert Advice

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