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You can hit the dirt and hit it fast when you are aboard your Argon 18 Dark Matter. This gravel bike gives you the freedom to go way off the standard path and onto uncharted grounds. Argon 18 wants to change the game in terms of gravel bikes with the Dark Matter. Its race inspired geometry and ultra-responsive steering are hard to match in terms of all-road bikes. This version features the high-performing 12-speed SRAM Force AXS groupset for some of the best gravel shifting on the market. With the Argon 18 Dark Matter, you will be ready for racing or a long and tough day of off-road riding.

The Dark Matter features a gravel-specific monocoque carbon frame. It is aerodynamic while giving you a high enough position to maintain stability over difficult roads. The front of your frame includes a carbon fork with clearance for 45c tires. This is the same clearance as typical gravel bikes, but the Dark Matter has a longer wheelbase than most. That fork contains hidden fender mounts to keep your wheels safe on any road. The fork is longer than that of a typical road bike with capacity for disc brakes. Three sizes of headtube extensions give you the option to make your front end even taller to suit your own riding preference.

As with any gravel bike, durability plays a large part in the design of the Dark Matter frame. It features an inlaid chainsuck guard with an integrated drain hole as well as a silicone chainstay protector. The downtube is protected in a similar fashion and holds a bottle mount and access to internal cable routing. With all these features integrated into the frame, the carbon, chain, and cables can all be adequately protected from the elements.

As you traverse some difficult gravel terrain, you need a bike that will be compliant, so you can stay comfortable and maintain your stamina. The TDS-C seatpost is easy to use, comfortable, and compliant for an all-day ride. Bent fork legs are designed to flex and absorb vibrations to dissipate impact forces before they reach your body and hands.

The Argon 18 Dark Matter is your companion for the longest and most grueling rides imaginable. If you want the ability to go fast off the beaten path, the Argon 18 Dark Matter is the perfect racer for you. Few companies have dedicated so much to creating a fast gravel bike. Argon 18 did just that with this aerodynamic carbon frame. With extra durability and the capability to support any groupset, the Dark Matter is an outstanding all-around machine for all-day riding.


  • Frame: Argon 18 Dark Matter
  • Fork: Argon 18 Dark Matter
  • Headset: FSA 30 + 3DPLUS
  • Seatpost: TDS-C Carbon 27.2mm


  • Bar Tape Fizik Superlight
  • Bottom Bracket SRAM DUB Pressfit 86.5mm
  • Brake Calipers SRAM Force Hydraulic
  • Cassette SRAM XG-1270, 12s
  • Chain SRAM Force, 12s
  • Crankset SRAM Force DUB 1
  • Fork Argon 18 Carbon, 12x119mm Thru-Axle
  • Frame Material Monocoque Carbon, 12x161mm Thru-Axle
  • Front Derailleur None
  • Handlebar 3T Ergoterra Pro
  • Headset Argon 18 3DPlus Integrated
  • Pedals Not Included
  • Rear Derailleur SRAM Force ETap AXS
  • Rotors SRAM Centerline XR
  • Saddle Fizik Gobi M5 VS Manganese
  • Seatpost Argon 18 TDS-C Carbon, 27.2mm
  • Shifters / Levers SRAM Force ETap AXS HRD
  • Stem 3T ARX II Pro
  • Tires Mavic
  • Tubes Mavic
  • Wheel - Front Mavic Allroad Elite Disc UST
  • Wheel - Rear Mavic Allroad Elite Disc UST

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