Grey Matter

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Get rough and ready for anything with the new Grey Matter. The gravel-specific handling and features that made the Dark Matter the ultimate gravel machine is now available in an alloy frame.

Build options:
SRAM Rival 1 $2,200
SRAM Apex 1 $1,900
More details
Color: Tundra Green Gloss

All images on this page are used for illustrative purposes only. Actual bike specifications may vary depending on country and assembly options available. Please refer to the Features and Configurations section below for options available in your region.

Go On. Get Lost.

Really – go get lost. You’ve got extra snacks, gear, and you’ve got the bike that will go anywhere with you. Kicking up rocks on an old logging road? No problem. Muddy singletrack? Comes off easy. Grit pinging your frame for the next hundred miles? Didn’t notice. Get even further off the beaten path with a bikepacking-ready ride with fender and rack mounts, and up to six bottle and utility mounts, depending on size. Also with internal cable routing at the headset and external at chainstays, and our 3D headset with cable integration for easy maintenance and dialed-in fit options.

Ideal for

The self-sufficient gravel adventurer - also looking for peak performance.

Core Technologies

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.

3D

Argon 18’s proprietary 3D System is an integrated solution that extends the headtube for more positioning options.

Argon Fit System

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

Features & Configurations

Max tire size

700x42c (43mm) or 650x47c (47mm)

Max rim size

43mm

Fork rake

XXS to S: 5.4cm / M to XL: 4.9cm

Fork Length (Axle-to-crown)

39.5cm

BB standard

BB86

Additional frame and fork mounting points

For extra bottles and gear

27.2mm Ø seatpost

For fit and performance

Carbon fork

Lightweight, compliant, and optimal handling

3D Headset

The ultimate fit and stiffness combo

Configuration
MSRP
Colorway
Frame
Fork
Seatpost
Headset
BB
(Bottom bracket)
Front derailleur
Rear derailleur
Crankset
See crankset measurements
Cassette
Chain
Wheelset
Tires
Brakes
Rotors
Brake levers
Shifters
Handlebar
See handlebar measurements
Stem
See stem measurements
Bar Tape
Saddle
SRAM Rival 1
$2,200
Tundra Green Gloss
Grey Matter
Grey Matter specific
FSA Gossamer SB20 (27.2mm)
FSA No.69 SRS with 3D
SRAM PFGXP Road 86.5/WA91.5
-
SRAM Rival 1 Long Cage
SRAM Rival 1 40T
SRAM PowerGlide 1130 11-42
KMC X11 EPT
Team Aero-Gravel i23 TC AGX 700c
Vittoria Terreno Dry 700x38c
SRAM Rival
SRAM G2 CleanSweep Rotor / F:160mm R:140mm
SRAM Rival 1 HRD
SRAM Rival 1 HRD
FSA NS Adventure Compact HR-RD-310S
FSA OS-167 Omega Pro
Prologo Plaintouch Black
Repente Quasar S
SRAM Apex 1
$1,900
Tundra Green Gloss
Grey Matter
Grey Matter specific
FSA Gossamer SB20 (27.2mm)
FSA No.69 SRS with 3D
FSA BB-AL86 for 19mm
-
SRAM Apex 1 Long Cage
FSA Omega Crankset 1x 40T
SRAM PowerGlide 1130 11-42
KMC X11 EPT
Team Aero-Gravel i23 TC AGX 700c
Vittoria Terreno Dry 700x38c
SRAM Apex
SRAM G2 CleanSweep Rotor, 6-bolt / F:160mm R:140mm
SRAM Apex 1 HRD
SRAM Apex 1 HRD
FSA NS Adventure Compact
FSA OS-167 Omega Pro
Prologo Plaintouch Black
Repente Quasar S

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
75.5
D
Top tube length
cm
49.6
51.7
53.8
56.0
58.2
60.7
E
Chain stay length
cm
42.8
42.8
42.8
42.8
43.0
43.2
F
Wheelbase
cm
100.3
100.6
102.1
102.7
104.8
106.2
G
BB Drop
cm
8.0
8.0
7.5
7.5
7.0
7.0
H1
Head Tube Length 3D (0mm)
cm
10.4
11.9
14.4
16.0
18.7
21.1
H2
Head Tube Length 3D (25mm)
cm
12.9
14.4
16.9
18.5
21.2
23.6
H3
-
cm
-
-
-
-
-
-
I
Stand Over Height
cm
68.9
71.6
75.3
78.3
81.8
84.9

Fit

(Stack and Reach)

XXS44-46
XS47-50
S51-53
M54-56
L57-59
XL60-62
J
Stack 3D (0mm)
cm
52.5
54.5
56.5
58.5
60.5
63.0
J
-
cm
-
-
-
-
-
-
J
Stack 3D (25mm)
cm
54.8
56.9
58.9
60.9
62.9
65.4
K
Reach 3D (0mm)
cm
35.8
36.8
37.8
38.8
39.8
40.8
K
-
cm
-
-
-
-
-
-
K
Reach 3D (25mm)
cm
34.9
36.0
37.0
38.0
39.0
40.0
Saddle Height Min
cm
49.0
52.0
55.5
59.0
62.5
66.0
Saddle Height Max
cm
74.0
77.0
80.5
84.0
87.5
91.0
Standover Height is measured with 700x38c tires