2025 Argon 18 Sum Shimano 105 Di2 Carbon Aero Race Road Bike

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USD 3,000.00 USD 4,975.00

Brand: Argon 18

Product Code: ARG202511WR

Availability: In Stock

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Product Description

2025 Argon 18 Sum Shimano 105 Di2 | Carbon Aero Race Road Bike

2025 Argon 18 Sum Shimano 105 Di2

The Aero All-Rounder. Pro-Level Performance Meets Electronic Precision.

The 2025 Argon 18 Sum is designed for riders who demand the speed of a dedicated aero bike without the weight penalty. By blending the aerodynamic profiles of the Nitrogen with the pure agility of the Gallium Pro, the Sum delivers a ride that is fast on the flats and snappy on the climbs. Equipped with the reliable Shimano 105 Di2 electronic groupset and Scope S4.A carbon wheels, this bike is built to handle everything from competitive racing to high-speed club rides.

Key Highlights

Balanced Race Geometry: Engineered to provide a stable yet aggressive position for maximum power transfer and handling.
Shimano 105 Di2 R7150: 12-speed electronic shifting that brings lightning-fast, seamless gear changes to the core of the road lineup.
Aerodynamic Integration: Fully internal cable routing through the FSA SMR-II system for reduced drag and a clean cockpit.
Scope S4.A Wheels: Performance-focused carbon wheelset offering the perfect balance of aerodynamics and all-road stability.
30C Tire Clearance: Room for up to 32mm tires, providing extra comfort and grip for varied road surfaces.

Technical Specifications

Frameset & Cockpit
Frame	SUM Carbon Aero Race, Fully Integrated Cables
Fork	SUM Specific Carbon, Flat Mount Disc
Headset	FSA NO.55R 1.5'' + 3D System
Handlebar	FSA Energy SCR Compact
Stem	FSA SMR-II Integrated Cable Routing
Seatpost	Argon 18 SUM Specific Carbon
Saddle	Repente Quasar
Drivetrain & Shifting
Groupset	Shimano 105 Di2 R7150, 2x12 Speed Electronic
Crankset	Shimano 105 FC-R7100, 52/36T
Cassette	Shimano 105 CS-R7100, 11-34T
Bottom Bracket	Shimano Ultegra SM-BB72 Press Fit
Chain	Shimano 105 12-Speed
Brakes & Wheelset
Brakes	Shimano 105 Di2 R7170 Hydraulic Disc
Rotors	Shimano SM-RT70 Centerlock (F: 160mm / R: 140mm)
Wheels	Scope S4.A Carbon, Tubeless Ready
Tires	Vittoria Corsa N.EXT TLR 28mm
Tire Clearance	30c (Max 32mm Measured)

Ride Character

The 2025 Argon 18 Sum is a versatile weapon for the modern road racer. It offers the lightning-fast acceleration of a climbing bike with the wind-slicing profiles of a dedicated aero frame. Thanks to the Shimano 105 Di2 groupset, shifting is effortless and reliable, while the Scope S4.A wheels ensure stability and speed on varied terrains. Whether you're climbing mountain passes or sprinting on the flats, the Sum provides a confident and efficient platform to elevate your performance.

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