Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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For Your Every Summer RSVP, with Code: SUMMER15
Description
giant gravel bike 2018 Argon 18 Dark Matter GRX Gravel Bike – HYPT Bike PerformancePLEASE CONTACT US TO CHECK THE LATEST AVAILABILITY AND LEADTIMES BEFORE PLACING AN ORDER. From rough race days to the unknown, the Dark Matter is your ultimate gravel machine. With massive tire clearance, smart storage, and rugged geometry, it powers through any terrain. Whatever the ride throws at youget over it. Built for riders who refuse to choose between speed, comfort, and versatility, the Argon 18 Dark Matter is a premium gravel bike designed
PLEASE CONTACT US TO CHECK THE LATEST AVAILABILITY AND LEADTIMES BEFORE PLACING AN ORDER.
From rough race days to the unknown, the Dark Matter is your ultimate gravel machine. With massive tire clearance, smart storage, and rugged geometry, it powers through any terrain.
Whatever the ride throws at you—get over it.
Built for riders who refuse to choose between speed, comfort, and versatility, the Argon 18 Dark Matter is a premium gravel bike designed to thrive wherever the road—or lack of it—takes you. From fast-paced gravel races to long backcountry adventures, the Dark Matter blends race-inspired performance with all-day endurance capability.
At the heart of the Dark Matter is Argon 18’s advanced carbon frame, engineered for efficient power transfer and confident handling on unpredictable terrain. With clearance for wide gravel tires, a stable yet responsive geometry, and vibration-damping compliance, this bike delivers control and comfort over rough roads, chunky gravel, and mixed surfaces. Multiple mounting points make it equally ready for bike packing missions or stripped-down race days.
At HYPT Bike Performance, we love the Dark Matter for its ability to adapt to your riding style. Whether you’re chasing podiums, exploring new routes, or building the ultimate do-it-all drop-bar bike, our team will help you dial in the perfect fit and component setup to match your goals. Every Dark Matter we sell reflects our commitment to precision fitting, performance tuning, and rider-first service.
If you’re looking for a gravel bike that pushes boundaries and elevates every ride, the Argon 18 Dark Matter—expertly set up at HYPT Bike Performance—is ready to take you further, faster, and with total confidence.
Geometry
|
Size |
XXS (44–46) |
XS (47–50) |
S (51–53) |
M (54–56) |
L (57–59) |
XL (60–62) |
|---|---|---|---|---|---|---|
|
Seat Tube Height (cm) |
42.0 |
43.5 |
46.0 |
49.5 |
54.0 |
58.5 |
|
Seat Tube Angle (°) |
75.5 |
74.9 |
74.3 |
73.7 |
73.1 |
72.5 |
|
Head Tube Angle (°) |
68.5 |
70.0 |
70.5 |
71.0 |
71.0 |
71.0 |
|
Top Tube Length (cm) |
50.7 |
53.0 |
55.3 |
57.7 |
60.2 |
62.9 |
|
Chainstay Length (cm) |
43.6 |
43.6 |
43.6 |
43.6 |
43.6 |
43.6 |
|
Wheelbase (cm) |
103.0 |
103.6 |
104.5 |
105.9 |
108.0 |
110.1 |
|
BB Drop (cm) |
8.0 |
8.0 |
7.8 |
7.8 |
7.6 |
7.6 |
|
Head Tube Length 3D – 0 mm (cm) |
7.2 |
8.7 |
10.6 |
12.6 |
15.1 |
17.8 |
|
Head Tube Length 3D – 35 mm (cm) |
9.5 |
11.2 |
13.1 |
15.1 |
17.6 |
20.3 |
|
Standover Height (cm) |
71.3 |
72.9 |
75.5 |
78.6 |
82.5 |
86.3 |
|
Fork Length Axle-to-Crown (mm) |
425 |
425 |
425 |
425 |
425 |
425 |
|
Fork Rake (mm) |
54 |
54 |
48 |
48 |
48 |
48 |
|
Trail (cm) |
8.6 |
7.6 |
7.9 |
7.5 |
7.5 |
7.5 |
Fit – Stack & Reach
|
Size |
XXS |
XS |
S |
M |
L |
XL |
|---|---|---|---|---|---|---|
|
Stack Min (cm) |
52.0 |
54.0 |
56.1 |
58.2 |
60.3 |
62.9 |
|
Stack Max w/ 3D (35 mm) (cm) |
54.3 |
56.4 |
58.5 |
60.6 |
62.7 |
65.3 |
|
Reach (cm) |
37.0 |
38.2 |
39.4 |
40.6 |
41.8 |
43.0 |
|
Reach w/ 3D (35 mm) (cm) |
36.1 |
37.3 |
38.6 |
39.8 |
41.0 |
42.2 |
Saddle Height Range
|
Size |
XXS |
XS |
S |
M |
L |
XL |
|---|---|---|---|---|---|---|
|
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 |
For precise sizing and fit recommendations, visit HYPT Bike Performance for a professional bike fit.
Build Specifications
Frameset
|
Component |
Specification |
|---|---|
|
Frame |
Argon 18 Dark Matter |
|
Fork |
Argon 18 Dark Matter |
|
Integrated Cables |
Yes |
|
Storage Optimization System |
Yes (length-specific) |
Wheels & Tires
|
Component |
Specification |
|---|---|
|
Wheels |
DT Swiss G1800 Microspline |
|
Tires |
Vittoria Terreno T50 Mixed, 700×50c |
|
Maximum Tire Clearance |
57 mm |
Drivetrain
|
Component |
Specification |
|---|---|
|
Bottom Bracket |
TOKEN T47 – 24 mm |
|
Front Derailleur |
N/A |
|
Rear Derailleur |
Shimano GRX RX822 (51T max) |
|
Crankset |
Shimano GRX RX610-1, 40T |
|
Chain |
Shimano CN‑M7100, 12‑speed |
|
Cassette |
Shimano SLX CS‑M7100, 10–51T |
Brakes & Shifting
|
Component |
Specification |
|---|---|
|
Shifters |
Shimano GRX RX610 |
|
Brake Levers |
Shimano GRX BL‑RX610‑L |
|
Brakes |
Shimano RX400 |
|
Rotors |
Shimano SM‑RT70 – 160 mm front / 160 mm rear |
Cockpit & Contact Points
|
Component |
Specification |
|---|---|
|
Handlebar |
FSA A‑Wing Pro AGX |
|
Stem |
FSA SMR‑II |
|
Bar Tape |
Ciclovation Grind Touch |
|
Saddle |
Repente Quasar S 2.0 |
|
Seatpost |
Argon 18 TD |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy