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Sorry, this Argon 18 SUM Pro Dura-Ace Di2 Road Bike - 2025, Small isn't available.
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Argon 18 SUM Pro Dura-Ace Di2 Road Bike - 2025, Small

Item #BRD36942
Condition: Certified Pre-Owned
Fit Range: 5'2" - 5'5"

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Every Certified Pre-Owned bike passes our multi-point inspection
  • Frame integrity verified
  • All components inspected
  • Drivetrain cleaned and tuned
  • Suspension adjusted
  • Wheels trued
Shipping

Our RideFast shipping means this bike gets to you quickly and securely.

Quick Assembly
  • Bikes arrive tuned and mostly pre-assembled
  • Video guide included
  • Get riding in 15 minutes
Canadian Customers

Please note that any duties, taxes, or surcharges as required by Canadian customs and provincial authorities will be the buyer's responsibility. Shipping to Canadian addresses may take longer than expected due to customs.

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If this bike isn't perfect for you, our Ride Guides will help you find the right one.

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When You Combine Nitrogen and Gallium

Why We Love It
The Argon 18 Sum combines the aerodynamic advantages of the Nitrogen with the pure road performance of the Gallium Pro to solve the age old question: "Do I want a lightweight climbing bike or a slippery fast aero bike?" Combine the sum of both into one high performance package. Argon 18 dropped the seat stays and strategically designed the seat tube to deliver welcomed rider comfort to a category often known for a rigid ride. From chasing KOMS, crushing crits, or riding centuries, the Argon 18 Sum is ready for action.
Master Mechanic’s Notes
  • Floor room model & has never been ridden
  • Light scratches on the drive side top tube
  • Argon 18 3D 15mm headset spacer included
Specifications
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Details
Original MSRP $8,950.00
Year 2025
Brand Argon 18
Model SUM Pro
Size Small
Frame Material Carbon Fiber
Drivetrain Shimano, 2x12 spd
Weight 15 lbs 11 oz
mpn SUMP.S.352A.1D.2
Build
Fork Argon 18 SUM Pro, Carbon
Brakes Shimano Dura-Ace R9270, Disc Brakes - Hydraulic
Shifters Shimano Dura-Ace Di2 R9270, Electronic
Front Derailleur Shimano Dura-Ace Di2 R9250
Rear Derailleur Shimano Dura-Ace Di2 R9250
Bottom Bracket Shell Press fit
Crankset Shimano Dura-Ace R9200, 52/36t, 170mm
Cassette Shimano Dura-Ace R9200, 11-30t
Chain Shimano
Handlebar FSA SL-K UD Carbon, 42cm
Headset FSA
Stem FSA ACR Alloy, 31.8mm x 90mm, 6°
Seatpost Argon 18 TDS RCL Carbon, Frame Specific
Saddle Repente Prime 3.0 w/ Carbon Fiber (7x9mm) Rails
Front Axle Spacing 12x100mm (Thru-Axle)
Rear Axle Spacing 12x142mm (Thru-Axle)
Wheelset DT Swiss ARC 1400 50 Carbon Tubeless Compatible, DT Swiss 240
Front Tire Vittoria Corsa Graphene 2.0, 700C x 25C
Rear Tire Vittoria Corsa Graphene 2.0, 700C x 25C
Tire Type Tubeless
Tubeless Compatibility Wheels are tubeless compatible but ship with tubes installed
Charger Included yes
Pedals Sold separately
Geometry
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Bike geometry chart
Inspected. Tested. Trusted.

What is CPO?

CPO bikes are gently ridden bikes that have been meticulously inspected, restored and serviced. Every CPO bike is cleaned, tuned and tested in our top-of-the-line Colorado headquarters. Road, mountain, ebike or gravel, TPC services each bike over 8 phases and multiple points of inspection.

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