E-Substance Carbon Rival (Fazua)
Vitus
Gravel
E-Substance Carbon Rival (Fazua) is a carbon electric gravel road bike (2024), by Vitus. It is a strong match 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. Metric-wise, it stands out for good fit flexibility for dialing in rider position, a balanced ride feel between comfort and directness, and all-round climbing capability rather than a narrow specialty. The main trade-off is less emphasis on outright speed than speed-focused builds and a value score that depends more on priorities than pure price efficiency. Compare this bike on MatchBikes.com to similar gravel models.
Rating

Score Summary
Performance
Built for speed and efficiency
Fit
Dialed-in Fit & Comfort
Value
Battery
Specifications
General
Frame
Drivetrain
Wheels
Brakes
Cockpit
Seat
E-Bike Components
Geometry
| Measurement | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.504 mm | 1.531 mm | 1.54 mm | 1.562 mm |
| Bottom Bracket Height | 277 mm | 277 mm | 277 mm | 277 mm |
| Front Center | 581 mm | 595 mm | 604 mm | 634 mm |
| Rake | 48 mm | 48 mm | 48 mm | 48 mm |
| Trail | 73 mm | 68 mm | 60 mm | 61 mm |
| Stack | 541.4 mm | 565.8 mm | 586.9 mm | 623.6 mm |
| Reach | 359.9 mm | 369.6 mm | 381 mm | 399.3 mm |
| Top Tube Length | 510 mm | 532.2 mm | 560 mm | 590 mm |
| Seat Tube Angle | 74.5 ° | 74 ° | 73 ° | 73 ° |
| Seat Tube Length | 501 mm | 525 mm | 560 mm | 590 mm |
| Head Tube Angle | 70.5 ° | 71 ° | 72 ° | 72 ° |
| Head Tube Length | 120 mm | 145 mm | 170 mm | 205 mm |
| Chainstay Length | 435 mm | 435 mm | 435 mm | 435 mm |
| Wheelbase | 1006 mm | 1020 mm | 1031 mm | 1060 mm |
| Bottom Bracket Drop | 72 mm | 72 mm | 72 mm | 72 mm |
| Standover Height | 775 mm | 794 mm | 807 mm | 825 mm |
| Wheels | 700 | 700 | 700 | 700 |
| Rider Min Height | 158 cm | 168 cm | 178 cm | 186 cm |
| Rider Max Height | 171 cm | 180 cm | 189 cm | 199 cm |

























































