2025 Argon 18 Sum Shimano Ultegra Di2 Carbon Aero Race Road Bike
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Product Description
2025 Argon 18 Sum Shimano Ultegra Di2
The Perfect Balance. Pro-Level Aerodynamics Meets Precision Electronic Shifting.
The 2025 Argon 18 Sum is the ultimate all-rounder, meticulously engineered to combine the aerodynamic efficiency of the Nitrogen with the pure climbing agility of the Gallium Pro. Designed for the competitive cyclist, the Sum utilizes a CFD-optimized carbon layup that ensures stability in crosswinds and explosive power transfer. Outfitted with the industry-standard Shimano Ultegra Di2 electronic groupset and high-performance Scope R4 carbon wheels, this machine is ready to dominate every road race and weekend epic.
Key Highlights
- Aero-Light Carbon Frame: CFD-optimized profiles designed to slice through the wind while maintaining an ultra-lightweight structure.
- Shimano Ultegra Di2 R8150: Lightning-fast 12-speed electronic shifting providing professional-tier reliability and precision.
- Scope R4 Carbon Wheelset: Aerodynamic 45mm depth wheels that offer the perfect balance of lightweight climbing and flat-road speed.
- Total Integration: Fully internal cable routing through the FSA SMR-II system for a clean look and reduced aerodynamic drag.
- 30C Tire Clearance: Rated for tires up to 30c (32mm measured), providing superior grip and comfort on 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 Ultegra Di2 R8150, 2x12 Speed Electronic |
| Crankset | Shimano Ultegra R8100, 52/36T |
| Cassette | Shimano Ultegra CS-R8100, 11-30T |
| Bottom Bracket | Shimano Ultegra SM-BB72 Press Fit |
| Chain | Shimano Ultegra CN-M8100 |
| Brakes & Wheelset | |
| Brakes | Shimano Ultegra Di2 R8170 Hydraulic Disc |
| Rotors | Shimano Ultegra RT-CL800 (F: 160mm / R: 140mm) |
| Wheels | Scope R4 Carbon, Tubeless Ready |
| Tires | Vittoria Corsa N.EXT TLR 28mm |
| Clearance | 30c (Max 32mm Measured) |
Ride Character
The 2025 Argon 18 Sum represents the modern evolution of a road bike. It provides a surgically precise handling profile that inspires confidence on technical descents, while the laterally stiff frame ensures zero watt loss during explosive sprints. Combined with the lightning-fast, semi-wireless shifting of the Shimano Ultegra Di2, the Sum offers a premium racing experience that is accessible, reliable, and undeniably fast on every road.
Ordering & Products
```Are the products sold by Runcycles genuine?
Runcycles offers new bicycle products, components, accessories, and related products from established brands. Product information, specifications, and package contents are provided on the individual product page. Customers are encouraged to review the product details carefully before placing an order.
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Select the product you would like to purchase, choose any available options, add the item to your cart, and proceed through checkout. Please make sure your shipping address, contact information, and order details are correct before completing payment.
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Shipping & Delivery
```Do you ship internationally?
Yes. Runcycles serves international customers and offers worldwide shipping options. Availability and shipping costs may vary depending on the selected shipping service.
How long does shipping take?
Delivery time depends on the selected shipping service. Estimated delivery time information will be provided during the ordering process, if available.
Will I receive a tracking number?
Yes. When tracking is available for your shipment, tracking information will be provided after the order has been dispatched.
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Returns & Refunds
```Can I return an item?
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Warranty
```Do products include a warranty?
Warranty coverage depends on the manufacturer and the specific product. Where available, warranty information is displayed on the relevant product page or provided with the product.
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Product Information
```Where can I find the product specifications?
Product specifications are displayed on each individual product page. Please review the specifications, compatibility information, dimensions, included components, and other product details before ordering.
Are product images exactly the same as the item I will receive?
Product images are provided for identification and illustration. Product appearance, packaging, graphics, or included accessories may vary by model, production batch, or manufacturer. Please refer to the written specifications and package contents for the most accurate product information.
Customer Support
```How can I contact Runcycles?
For order assistance, product questions, or other inquiries, please contact our customer support team.
Email: order@runcycles.com
How quickly will customer support respond?
We aim to respond to customer inquiries as quickly as possible during business hours. Response times may vary depending on the nature and complexity of the request.
