PORTAL C1
Jamis
Trail
PORTAL C1 is a carbon trail mountain bike (2024), from Jamis, in the Portal series. It is a strong match for a wide range of riders thanks to its fit flexibility, with a setup that gives you a balanced riding position, while being well suited to natural trails and mixed off-road terrain. Metric-wise, it stands out for strong climbing friendliness for sustained uphill riding, a comfort-leaning ride feel over longer rides, and good fit flexibility for dialing in rider position. The main trade-off 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.
6.1
Rating

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Score Summary
Performance
7.2
Value
1.3
Fit
7.5
Performance
Built for speed and efficiency
Speed
5.6
Low
Climbing Efficiency
9.5
Mountain Goat
Suspension
7.0
High-impact ready
Fit
Dialed-in Fit & Comfort
Riding Position
6.5
Balanced
Fit Flexibility
7.2
Adjustable
Ride Comfort
7.9
Comfortable
Value
Value for Money
1.3
Overpriced
Surface Range
Natural TrailsSpecifications
General
Brand
Jamis
Model
PORTAL C1
Year
2024
Price
$9,499
Weight
13.61 kg
Category
Mountain
Sub Category
Trail
Groupset
XTR
Frame
Frame
Dyad Pro High Modulus Carbon Fiber, 130mm travel 3VO suspension, Enduro¨ Max sealed bearing pivots, 1.5 – 1 1/8Ó tapered head tube, 12x148mm thru-axle, Internal dropper post routing, Custom Jamis upper chainguide, MRP SXg lower chainguide,Fox DHX2 Factory Series coil shock w/2-position compression switch, SLS 450lb Spring, high/low speed compression, high/low speed rebound, 10mm hardware, replaceable derailleur hanger
Suspension Fork
Fox 36 Factory Series Float 29? w/ 3-position adjust compression & lock-out,15x110mm axle, air spring compression, rebound adjust, tapered alloy steerer, 140mm travel, 51mm rake
Suspension Type
Full
Drivetrain
Shift Levers
Shimano XTR, 1×12-speed
Rear Derailleur
Shimano XTR, 12-speed
Cassette
Shimano M9100, 12-speed, 10-51T
Crank
Shimano XTR M9120, 32T
Bottom Bracket
Shimano BSA
Chain
Shimano M9100, 12-speed
Wheels
Rims
Stans Flow CB7 Carbon 29? tubeless wheels, 15x110mm axle front and 12x148mm rear E-SYNC hubs, Sapim D-Light spokes
Tires
Vittoria Mazza 29 x 2.4?, TNT tubeless
Brakes
Brake Type
Hydraulic Disc
Brake Description
Shimano XTR M9120 4-piston Ice-Tech hydraulic disc, RT-900 180mm rotors
Cockpit
Stem
Race Face Turbine R, 50mm extension, 35mm clamp diameter
Handlebar
Race Face Turbine R, 800mm x 20mm rise, 35mm diameter
Grips
Jamis Lock-On
Seat
Saddle
WTB Volt
Seatpost
Fox Transfer Factory Series Dropper, 1x remote
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 |




























































