PORTAL C2
Jamis
Trail
PORTAL C2 is a carbon trail mountain bike (2024), from Jamis, in the Portal series. Rider-wise, it fits a wide range of riders thanks to its fit flexibility, with a balanced riding position, with a surface profile that is well suited to natural trails and mixed off-road terrain. The main strengths in the metrics are strong climbing friendliness for sustained uphill riding, a balanced ride feel between comfort and directness, and good fit flexibility for dialing in rider position. That said, the main limitation versus more focused builds is a value score that depends more on priorities than pure price efficiency. If this looks close to what you want, compare this bike on MatchBikes.com against similar models.
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 | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.45 mm | 1.401 mm | 1.356 mm | 1.315 mm |
| Bottom Bracket Height | 341 mm | 341 mm | 341 mm | 341 mm |
| Front Center | 713 mm | 738 mm | 763 mm | 789 mm |
| Rake | 47 mm | 47 mm | 46 mm | 47 mm |
| Trail | 108 mm | 108 mm | 109 mm | 108 mm |
| Stack | 606 mm | 615 mm | 625 mm | 634 mm |
| Reach | 418 mm | 439 mm | 461 mm | 482 mm |
| Top Tube Length | 585 mm | 610 mm | 635 mm | 660 mm |
| Seat Tube Angle | 74 ° | 74 ° | 74 ° | 74 ° |
| Seat Tube Length | 394 mm | 432 mm | 483 mm | 533 mm |
| Head Tube Angle | 67 ° | 67 ° | 67 ° | 67 ° |
| Head Tube Length | 105 mm | 115 mm | 125 mm | 135 mm |
| Chainstay Length | 437 mm | 437 mm | 437 mm | 437 mm |
| Wheelbase | 1148 mm | 1173 mm | 1198 mm | 1224 mm |
| Bottom Bracket Drop | 33 mm | 33 mm | 33 mm | 33 mm |
| Standover Height | 754 mm | 749 mm | 754 mm | 774 mm |
| Wheels | 29" | 29" | 29" | 29" |
| Rider Min Height | 158 cm | 168 cm | 178 cm | 186 cm |
| Rider Max Height | 171 cm | 180 cm | 189 cm | 199 cm |




























































