Dark Matter

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Go way off the beaten path with this gravel racer featuring true road race-inspired geometry derived from Argon 18’s legendary race bikes. Some will blaze the trail, but on the Dark Matter, you will scorch it.

Color: Sand Gloss

All pictures featured on this page are for illustration purposes only. Actual bike specs may vary depending on the country and build options available.

Characteristics

Where the pavement ends

For when the route is unpredictable – but the ride must be solid. Head way off the beaten path with this gravel racer featuring performance-driven geometry derived from Argon 18’s legendary World Tour bikes. Go wherever the day takes you with assured handling and optimal power transfer, to control the terrain regardless of the surprises it may throw at you. We wanted a bike that offered supreme confidence alongside racing behaviour, a bike that would feel just as playful and responsive on the dirt as it would on the road.

Our gravel geometry provides fork rake specific to frame size, to allow for tight turn clearance on more technical runs, and with an eye toward ride quality, the Dark Matter features seatstays designed to flex and dissipate shocks. You'll also get three head tube extension heights for every frame size with our streamlined 3D+ system: 0mm, 15mm and 30mm.

Ideal for

Gravel racers looking for poppy performance and nimble responsiveness on all terrain.

Core Technologies

3D+

For our newest generation of bikes, we wanted to push our 3D System even further by merging it seamlessly with the frame.

Modular Cable Console

Di2 and wireless optimized, compatible with mechanical and EPS groupsets.

Gravel Geometry

Our gravel geometry draws on our endurance geometry, itself directly inspired by our performance road race series, meaning handling, responsiveness and race-ready positioning are paramount.

Topological Compliance System

To achieve the optimal balance of comfort and performance for our endurance line, we needed geometry uniquely aligned with the demands of long-distance riding and racing. In conjunction with the best geometry, we also needed to optimise frame topology and carbon layup.

Argon Fit System

Argon Fit System is designed to provide riders of all sizes with consistent performance and optimal positioning.

Elite Level Layup

We believe the discerning cyclist deserves more than just trickle-down technology. Our Elite level bikes benefit from the same attention to detail as our Pro level ones.

Features & Configurations

Frame weight

1246

Fork weight

495

Max tire size

45c (for both 700C and 650B)

Max rim size

48mm

BB standard

BB86

Removable Front Derailleur Hanger

For clean installation of 1x, compatible with 46/30T to 52/36T or 1x46T

Flat Mount Disc Brakes (140/160 Rotors)

Powerful braking for riding confidence in all conditions. When using fenders, 140mm rear rotor is recommended

Optional Direct Mount Rear Derailleur Hanger

For added versatility and optimal installation

12mm DT-Swiss Type Thru-Axle

Fast wheel changes, light and sturdy axles. 100mm front and 142mm rear

Inlaid Chainsuck Protector

Protects the carbon chainstay against wear from the chain's movement and features integrated drainage

Downtube Protector with Bottle Mount

Provides access to internal cable routing

45C (48mm) Tire Clearance

40C (43mm) with fenders. Limitations may apply with specific groupsets

27.2mm Carbon Seatpost

Offers adjustable offset for optimal fit, compliance, and comfort in all riding conditions

Configuration
Frameset
(Frame, fork, seatpost)
Colorway
Headset
Stem
Handlebar
Brakes
Bar Tape
BB
(Bottom bracket)
Brake lever
Cable and housing
Cassette
Chain
Crankset
Front derailleur
Rear derailleur
Rotor
Saddle
Shifters
Thru Axles
Tires
TT Bar
Wheelset
Frameset
Argon 18 Dark Matter
Sand Gloss
FSA 30 + 3D 1''1/2
A18 (DT Swiss) FR: 12x100 RR: 12x142
Shimano GRX RX810
Argon 18 Dark Matter
Sand Gloss
FSA 30 + 3D 1''1/2
FSA NS OS-96/CM
FSA NS Adventure Compact
Shimano GRX RX810
Prologo Plaintouch Black
Shimano BB Press Fit SM-BB72-41B
Shimano GRX RX810
Shimano/Jagwire
Shimano M7000-11 11/42
Shimano HG701-11
Shimano GRX RX810-1 40T
-
Shimano GRX RX812 Direct Mount
Shimano RT800 FR: 160 mm RR: 140 mm
Prologo Scratch RS (T2.0)
Shimano GRX RX810
A18 (DT Swiss) FR: 12x100 RR: 12x142
Challenge Gravel Grinder TL 700 x 42
-
HED Ardennes GP Plus Tubeless
Shimano 105
Argon 18 Dark Matter
Sand Gloss
FSA 30 + 3D 1''1/2
FSA OS-168
FSA NS Adventure Compact
Shimano 105 R7020
Prologo Plaintouch Black
Shimano BB Press Fit SM-BB72-41B
Shimano 105 R7020
Shimano/Jagwire
Shimano 105 R7000 11/34
Shimano HG601-11
Shimano 105 R7000 50/34
Shimano 105 R7000 Braze-On
Shimano 105 R7000 Direct Mount
Shimano RT70 FR: 160 mm RR: 140 mm
Prologo Scratch RS (STN)
Shimano 105 R7020
A18 (DT Swiss) Fr: 12x100 RR: 12x142
Challenge Gravel Grinder TL 700 x 42
-
HED Ardennes GP Plus Tubeless

Geometry

XXS44-46
XS47-50
S51-53
M54-56
L57-59
XL60-62
A
Seat Tube Height
cm
42.0
45.0
48.5
52.0
55.5
59.0
B
Seat Tube Angle
deg
75.5
74.9
74.3
73.7
73.1
72.5
C
Head Tube Angle
deg
69.5
71.0
71.4
72.0
72.0
72.5
D
Top Tube Length
cm
49.2
51.3
53.4
55.6
57.9
60.3
E
Chain Stay Length
cm
42.8
42.8
42.8
42.8
42.8
42.8
F
Wheelbase
cm
100.8
101.1
102.4
103.0
104.6
105.9
G
BB Drop
cm
7.0
7.0
7.0
7.0
7.0
7.0
H1
Head Tube Length 3D S
cm
12.0
13.5
15.4
17.1
19.2
21.6
H2
Head Tube Length 3D M
cm
13.5
15.0
16.9
18.6
20.7
23.1
H3
Head Tube Length 3D L
cm
15.0
16.5
18.4
20.1
22.2
24.6
I
Stand Over Height
cm
70.1
72.9
76.0
79.1
82.1
85.2

Fit

(Stack and Reach)

XXS44-46
XS47-50
S51-53
M54-56
L57-59
XL60-62
D
Stack S 3D
cm
53.0
55.0
57.0
59.0
61.0
63.5
D
Stack M 3D
cm
54.4
56.4
58.4
60.4
62.4
64.9
D
Stack L 3D
cm
55.8
57.8
59.8
61.9
63.9
66.4
D
Reach S 3D
cm
35.6
36.7
37.7
38.7
39.7
40.7
D
Reach M 3D
cm
35.1
36.2
37.2
38.2
39.2
40.2
D
Reach L 3D
cm
34.6
35.7
36.7
37.8
38.8
39.8
D
Saddle Height Min
cm
52.0
55.0
58.5
62.0
65.5
69.0
D
Saddle Height Max
cm
74.0
77.0
80.5
84.0
87.5
91.0