Argon 18 Dark Matter

Adventure-ready. Race-inspired.
From long gravel races to remote forest roads, the Argon 18 Dark Matter is built for speed, control, and endurance.
With up to 57 mm tyre clearance, integrated storage, and a balanced geometry that blends race efficiency with gravel stability, this bike is ready for any challenge.

Benefits:

• Massive tyre clearance up to 57 mm

• Integrated downtube storage and multiple mounting points

• Race-inspired gravel geometry for precision and stability

• Compatible with front suspension and dynamo routing

• Suitable for 1× or 2× drivetrains, UDH hanger ready

Technical features:

• Frame: Carbon fiber

• Tyre clearance: up to 57 mm

• Mounts: frame bags, fenders, top tube, downtube

• Internal routing including dynamo integration

• Drivetrain: 1× optimized (2× compatible)

• Weight: from 950 g (frame, size M)

• Colour: various (depending on build)

• Made in Canada

SRAM Rival XPLR AXS Components

Frameset

Frame

Dark Matter

Fork

Dark Matter

Integrated Cables

Yes

Storage Optimization System Length chart

Yes

Wheels

Wheels

DT Swiss G1800 XDR

Tires

Schwalbe G-One RX PRO, TLR 700x50c

Tire Clearance

57mm

Group

Bottom Bracket

SRAM BB DUB T47 Wide

Front Derailleur

N/A

Rear Derailleur

SRAM Rival XPLR eTap AXS

Crankset Length chart

SRAM Rival 1 Wide DUB 40T

Chain

SRAM Rival Flattop

Cassette

SRAM XG 1251 10-44

Brakes

Brakes

SRAM Rival eTap AXS

Brake Levers

SRAM Rival AXS

Rotors

SRAM Centerlock Paceline / F:160mm R:160mm

Shifters

SRAM Rival AXS

Other Components

Handlebar Width chart

FSA A-Wing Pro AGX

Stem Length chart

FSA SMR-II

Bar Tape

Ciclovation Grind Touch

Saddle

Repente Quasar S 2.0

Seatpost

Argon 18 TDS-C

Geometry and fit

Geometry

XXS44-46

XS47-50

S51-53

M54-56

L57-59

XL60-62

Geometry

XXS44-46

XS47-50

S51-53

M54-56

L57-59

XL60-62

A

Seat tube Height

cm

42.0

43.5

46.0

49.5

54.0

58.5

B

Seat tube angle

deg

75.5

74.9

74.3

73.7

73.1

72.5

C

Head Tube Angle

deg

68.5

70.0

70.5

71.0

71.0

71.0

D

Top tube length

cm

50.7

53.0

55.3

57.7

60.2

62.9

E

Chain stay length

cm

43.6

43.6

43.6

43.6

43.6

43.6

F

Wheelbase

cm

103.0

103.6

104.5

105.9

108.0

110.1

G

BB Drop

cm

8.0

8.0

7.8

7.8

7.6

7.6

H1

Head Tube Length 3D (0mm)

cm

7.2

8.7

10.6

12.6

15.1

17.8

H2

Head Tube Length 3D (35mm)

cm

9,5

11.2

13.1

15.1

17.6

20.3

I

Stand Over Height

cm

71.3

72.9

75.5

78.6

82.5

86.3

L

Fork Length (Axle-to-crown)

cm

425.0

425.0

425.0

425.0

425.0

425.0

R

Fork Rake

cm

54.0

54.0

48.0

48.0

48.0

48.0

Fit (Stack and Reach)

XXS44-46

XS47-50

S51-53

M54-56

L57-59

XL60-62

Fit (Stack and Reach)

XXS44-46

XS47-50

S51-53

M54-56

L57-59

XL60-62

J

Stack min

cm

52.0

54.0

56.1

58.2

60.3

62.9

J

Stack max with 3D (35mm)

cm

54.3

56.4

58.5

60.6

62.7

65.3

K

Reach

cm

37.0

38.2

39.4

40.6

41.8

43.0

K

Reach 3D (35mm)

cm

36.1

37.3

38.6

39.8

41.0

42.2

Saddle Height Min

cm

59.0

60,5

63.0

66,5

71.0

75,5

Saddle Height Max

cm

79.0

80,5

83.0

86,5

91.0

95,5