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Stand out with the stunning design of the Sum Pro with refined aesthetic and premium builds, making every ride extraordinary.
Stand out with the stunning design of the Sum Pro with refined aesthetic and premium builds, making every ride extraordinary.
Argon 18

Argon 18 SUM Pro Dura Ace Di2 Carbon Road Bike in Crystal Black

£8,500.00
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Hassle free returns

RETURNS POLICY

If you'd like to exchange or return your order please include your name and order number with the return, our returns address is:

Returns
Activ Cycles
Unit 1&2 Kingfisher Business Park
Henwood
Ashford
TN24 8DG

Subject to the terms set out below we are happy to offer a refund or exchange on all goods except goods which are special orders or nutrition products, or where we have expressly advised you that there is no right to return the goods ordered (save in the event the goods are faulty) provided the goods are returned to us within 14 days of delivery to you.

If you return goods to us and request a different size or alternative product we will send it out free of charge (subject to stock availability). If you require a refund (or the replacement item is not in stock) we aim to process refunds within 2 working days of receipt of the goods. It is your responsibility to ensure that the item is returned to us safely and securely and in saleable condition.

Refunds will be processed using the same method of payment used for the original purchase. Due to the high incidence of fraud, we regret that we are unable to offer any refund without a valid receipt/delivery note.

If the product is faulty or wrong due to a mistake on our part then we will send out replacements free of charge and supply you with a prepaid returns label. For all goods returned please include a letter giving details along with a copy of the original receipt. Returned goods must be unused and with all appropriate packaging and labelling intact.

Your rights to return goods are protected under the Consumer Protection (Distance Selling) Regulations 2000 which can be found at theConsumer Protection (Distance Selling) Regulations 2000 (legislation.gov.uk).

Argon 18 SUM Pro Dura Ace Di2 Carbon Road Bike in Crystal Black

Season:2025

Brand:Argon 18

Code:SUMP.352A.1D.2

3D System
Get the best fit window without compromising the safety, steerer stiffness, or looks of your bike with Argon 18's 3D Technology.

Road Race Geometry
Our road race geometry is designed around the razor-sharp reflexes and precision handling required for racers of all levels.

Topological Compliance System
Proprietary design method to offer exceptional vertical compliance and dampened road-induced vibrations while retaining maximum stiffness.
Each bike model featuring TCS technology was individually analysed to optimize frame topology and carbon layup.

Argon Fit System
Argon 18's fit system offers size-specific geometries to provide optimal performance and positioning for all sizes, guaranteeing no rider left behind.

Pro Level Layup
We leave no room for compromise when we build bikes for the most demanding and passionate cyclists.
Technical Information
Frame - SUM Pro
Fork - SUM Pro specific
Headset - FSA Headset NO.55R 1.5'' + 3D
Integrated Cables - Yes

Wheels - Scope Artech A4
Tires - Challenge Criterium RS TLR 28c Black
Tire Clearance - 30C (32mm)

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 12S
Cassette - Shimano Dura Ace CS-R9200 11-30

Brakes - Shimano Dura-Ace Di2 R9270
Brake Levers - Shimano Dura-Ace Di2 R9270
Rotors - Shimano Dura-Ace RT-MT900 / F:160mm R:140mm
Shifters - Shimano Dura-Ace Di2 R9270

Handlebar - Vision Metron 5D ACR EVO
Bar Tape - Ciclovation LEATHER TOUCH Tornado Gloss
Saddle - Repente Quasar CR Carbon Rail
Seatpost - SUM specific (included with frameset)
Sizing Information
Professional Opinion
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