PORTAL C3
Jamis
Trail
PORTAL C3 is a carbon trail mountain bike (2024), by Jamis, from the Portal lineup. It suits 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. Its strongest points in the MatchBikes 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. At the same time, the main trade-off is a value score that depends more on priorities than pure price efficiency. Compare this bike on MatchBikes.com to similar trail models.
6.1
Rating

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Score Summary
Performance
6.5
Value
3.2
Fit
7.4
Performance
Built for speed and efficiency
Speed
5.0
Low
Climbing Efficiency
9.5
Mountain Goat
Suspension
6.0
Confident trail control
Fit
Dialed-in Fit & Comfort
Riding Position
6.5
Balanced
Fit Flexibility
7.2
Adjustable
Ride Comfort
7.8
Balanced
Value
Value for Money
3.2
Overpriced
Surface Range
Natural TrailsSpecifications
General
Brand
Jamis
Model
PORTAL C3
Year
2024
Price
$5,699
Weight
13.61 kg
Category
Mountain
Sub Category
Trail
Groupset
SLX
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 mounts, ISCG05 lower chainguide mounts, Fox Float DPS Performance Series EVOL shock w/3-position compression, 10mm hardware, replaceable derailleur hanger
Suspension Fork
Fox 34 Performance Series Float 29? w/ 3-position adjust compression & lock-out,15x110mm axle, air spring compression, rebound adjust, tapered alloy steerer, 130mm travel, 51mm rake
Suspension Type
Full
Drivetrain
Shift Levers
Shimano SLX, 1×12-speed
Rear Derailleur
Shimano SLX, 12-speed
Cassette
Shimano M7100, 12-speed, 10-51T
Crank
Race Face Aeffect, 32T
Bottom Bracket
Race Face BSA
Chain
KMC X12, 12-speed
Wheels
Rims
Stans Flow S2 29? tubeless wheels, 15x110mm axle front and 12x148mm rear E-SYNC hubs, Sapim Race spokes
Tires
Vittoria Mazza 29 x 2.4?, TNT tubeless
Brakes
Brake Type
Hydraulic Disc
Brake Description
Shimano SLX M7120 4-piston Ice-Tech hydraulic disc, RT-70 180mm rotors
Cockpit
Stem
Race Face Aeffect R, 50mm extension, 35mm clamp diameter
Handlebar
Race Face Aeffect R, 780mm x 20mm rise, 35mm diameter
Grips
Jamis Lock-On
Seat
Saddle
WTB Volt
Seatpost
Race Face Aeffect R 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 |




























































