Grey Matter SRAM Apex 1
Argon 18
Gravel
Grey Matter SRAM Apex 1 is an alloy gravel road bike (2024), from Argon 18, in the Grey Matter series. This model is best for a wide range of riders thanks to its fit flexibility, leaning toward a balanced riding position, and is ready for gravel routes as well as pavement. On MatchBikes metrics, it scores well for good fit flexibility for dialing in rider position, a balanced ride feel between comfort and directness, and less emphasis on aero shaping than on comfort or versatility. At the same time, the main trade-off is less emphasis on outright speed than speed-focused builds. Compare this bike across categories on MatchBikes.com to see whether a nearby segment gives you a better fit.
Rating

Score Summary
Performance
Built for speed and efficiency
Fit
Dialed-in Fit & Comfort
Value
Specifications
General
Frame
Drivetrain
Wheels
Brakes
Cockpit
Seat
Geometry
| Measurement | XXS | XS | SM | MD | LG | XL |
|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.466 mm | 1.481 mm | 1.495 mm | 1.508 mm | 1.52 mm | 1.544 mm |
| Bottom Bracket Height | 269 mm | 269 mm | 274 mm | 274 mm | 279 mm | 279 mm |
| Front Center | 588 mm | 591 mm | 604 mm | 610 mm | 628 mm | 640 mm |
| Rake | 54 mm | 54 mm | 54 mm | 49 mm | 49 mm | 80 mm |
| Trail | 73 mm | 63 mm | 60 mm | 62 mm | 62 mm | 8 mm |
| Stack | 525 mm | 545 mm | 565 mm | 585 mm | 605 mm | 630 mm |
| Reach | 358 mm | 368 mm | 378 mm | 388 mm | 398 mm | 408 mm |
| Top Tube Length | 496 mm | 517 mm | 538 mm | 560 mm | 582 mm | 607 mm |
| Seat Tube Angle | 75.5 ° | 74.9 ° | 74.3 ° | 73.7 ° | 73.1 ° | 72.5 ° |
| Seat Tube Length | 420 mm | 450 mm | 485 mm | 520 mm | 555 mm | 590 mm |
| Head Tube Angle | 69.5 ° | 71 ° | 71.4 ° | 72 ° | 72 ° | 75.5 ° |
| Head Tube Length | 104 mm | 119 mm | 144 mm | 160 mm | 187 mm | 211 mm |
| Chainstay Length | 428 mm | 428 mm | 428 mm | 428 mm | 430 mm | 432 mm |
| Wheelbase | 1003 mm | 1006 mm | 1021 mm | 1027 mm | 1048 mm | 1062 mm |
| Bottom Bracket Drop | 80 mm | 80 mm | 75 mm | 75 mm | 70 mm | 70 mm |
| Standover Height | 689 mm | 716 mm | 753 mm | 783 mm | 818 mm | 849 mm |
| Wheels | 700 | 700 | 700 | 700 | 700 | 700 |




























































