Bikes up to 60% offWe monitor over 40,000 bikes daily to find the best prices

Today’s Deals

2021 Jamis

PORTAL C4

A 29″ carbon frame full suspension trail bike with upper mid-range components.
Compare the full range

Manufacturer Price

$4,799
Weight31.2 lbs  
FrameCarbon
SuspensionFull, 130 / 130mm
ForkFox Rhythm Float 34
Wheels29″ Aluminum
Drivetrain1 × 12
GroupsetDeore
BrakesShimano Hydraulic Disc
SeatpostDropper
Where to Buy
Similar Bikes
Top Comparison
Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
PORTAL C4
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

28 mph

PORTAL C4

26 mph

Similar Bikes

Highest gear

(descending)

Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

None yet.

Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.

Reviews
Loam Wolf
Review: Jamis Portal C1

Aug 2020 · Caleb Ely

JAMIS PORTAL C1 LONG-TERM REVIEW MORE THAN MEETS THE EYE Words by Caleb Ely Photography by Caleb Ely & Brian Niles If you watched our Dissected video on the new Jamis Portal C1 few months back then you learned

Read Review

BIKE Magazine
Jamis Portal A1+ | $4,000

Nov 2019

It's official. Jamis now makes a good full-suspension bike. It's supple, efficient and clean. All it needs is some good parts to be bolted to it.

Read Review

Bicycling
The Jamis Portal Gets Brand-New Suspension

Sep 2018 · Taylor Rojek

The brand’s 3VO suspension takes a unique approach to efficiency.

Read Review

Geometry
Specs
Build
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 shock hardware, replaceable derailleur hanger

BB StandardBSA, 73mm, Threaded

Fork

Fox 34 Rhythm Series Float 29″ w/ sweep adjust compression & lock-out,15x110mm axle, air spring compression, rebound adjust, tapered alloy steerer, 130mm travel, 51mm rake

Travel130mm

Spring TypeAir

Bottom Bracket

Race Face BSA

Headset

FSA Orbit IS Integrated, 8mm cone spacer

Stem

Race Face Ride, 50mm extension, 35mm clamp diameter

Handlebar

Race Face Ride, 760mm x 20mm rise, 35mm diameter

Saddle

WTB Volt

Seatpost

KS Rage Dropper, Southpaw remote

TypeDropper

Pedals

N/A

Grips

Jamis Lock-On

Groupset
Rear Derailleur

Shimano Deore, 12-speed

Crank

Race Face Ride, 32T

Shifters

Shimano Deore, 1×12-speed

Cassette

Shimano M6100, 12-speed, 10-51T

Chain

KMC X12, 12-speed

Brakes

Shimano MT420 4-piston hydraulic disc, 180mm front & 160mm rear RT30 rotors

TypeShimano Hydraulic Disc

Wheels
Rims

Stan’s No Tubes Flow D 29″ rims, Shimano MT410 15x110mm front & 12x148mm rear hubs, stainless spokes

Tires

Vittoria Mazza 29 x 2.4″, TNT tubeless

Rider Notes
Riders Also Viewed

First added September 18

Last updated November 6

Not listed for 1,301 days