Jamis PORTAL C4 2023
2023 Mountain
Estimate price |
4,799$
Weight | 14.17 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Carbon -
Wheels 29" -
Travel Front 130mm -
Travel Rear 130mm -
Fork Fox Rhythm Float 34
-
Groupset Deore, Race Face -
Suspension Full -
Drivetrain 1 × 12 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
SM
158cm - 171cm
MD
168cm - 180cm
LG
178cm - 189cm
XL
186cm - 199cm
Parts list
Components
Main components, grouped by system.
Bike components
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 shock hardware, replaceable derailleur hanger
Suspension 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
Drivetrain
Rear Derailleur
Shimano Deore, 12-speed
Shift Levers
Shimano Deore, 1×12-speed
Cassette
Shimano M6100, 12-speed, 10-51T
Crank
Race Face Ride, 32T
Bottom Bracket
Race Face BSA
Chain
KMC X12, 12-speed
Pedals
N/A
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
Brakes
Brakes
Shimano MT420 4-piston hydraulic disc, 180mm front & 160mm rear RT30 rotors
Cockpit
Stem
Race Face Ride, 50mm extension, 35mm clamp diameter
Handlebar
Race Face Ride, 760mm x 20mm rise, 35mm diameter
Grips
Jamis Lock-On
Headset
FSA Orbit IS Integrated, 8mm cone spacer
Seat
Saddle
WTB Volt
Seatpost
KS Rage Dropper, Southpaw remote
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.46 mm | 1.41 mm | 1.36 mm | 1.32 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 | 600 mm | 609 mm | 619 mm | 628 mm |
| Reach | 412 mm | 433 mm | 455 mm | 476 mm |
| Top Tube Length | 579 mm | 604 mm | 629 mm | 654 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 | 431 mm | 431 mm | 431 mm | 431 mm |
| Wheelbase | 1142 mm | 1167 mm | 1192 mm | 1218 mm |
| Bottom Bracket Drop | 33 mm | 33 mm | 33 mm | 33 mm |
| Standover Height | 748 mm | 743 mm | 748 mm | 768 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 |
About this model
PORTAL C4 belongs to the Jamis Portal model. There are 30 bikes that carry this model name. You can get a glimpse at all models from 2023, by clicking on this link.
Model range prices
Jamis PORTAL A2 2023 is the cheapest bike model and costs 3799$. Jamis PORTAL C1 2023 is the most expensive one and costs 9499$.
Safety
Take safety seriously when you ride your bike, and always wear your helmet. Moreover, don’t ride on the sidewalk. This is actually against the law in some states and can be dangerous for both you and pedestrians.
Trail bikes average price
According to our math, the average price for a trustworthy Trail bike is 2762$. However, you could also get a good Trail bike even if you pay a lower amount than the average price. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
Furthermore, if we have a quick look at this model’s cost, we can see that at its release date the price was 4799$. If we compare this with the average Trail bike cost we notice that the price is 73.75% more expensive.
Trail bikes average weight
If we make a quick analysis of the average weight of a Trail bike, we get 12.98 kg (28.62 lbs). You will have a greater advantage on climbs if your bike is easier than the average. On descents, however, a heavier bike will give you extra speed.
With a weight of 14.17 kg (31.24 lbs), Jamis bike is a bit heavier than average. To sum up, it’s 9.17% heavier than the average weight of Trail bikes.
Internal Cable Routing
It’s also important to mention the internal cable routing that this bike has. In short, this will allow you to keep your bike cables in great condition. Say goodbye to hanging cables.
Overview of components
Fork
The fork installed on this bike is the Fox Rhythm Float 34 model. The travel on this model is 130mm. Bike forks are great for shock absorption and provide you with a smooth ride. In short, you should always ensure you have a good fork when purchasing a bike.
Fork material
The fork is made out of aluminum, which doesn’t add too much extra weight to the bike. However, it is not so stiff as steel or carbon forks are.
Rear Shock
Rear shocks offer better comfort, better traction, and better cornering. This allows for quicker riding on rough roads and trails. In conclusion, to increase your riding experience, get a bike with a rear shock if possible.
Wheels
As for the wheels, Jamis PORTAL C4 2023, has a 29″ aluminum model. Having 29″ wheels means that you need less fork travel, leading to a reduction of the pedal bob effect. However, the 29″ wheels will add a little more weight to the bike itself.
Brakes
When you want to stop the bike in time, the brakes are vital. The PORTAL C4 has Hydraulic Disc brakes. With Hydraulic Disc brakes, you’ll be able to stop on a dime, even in wet or icy conditions. To sum up, your safety is in good hands.
Sizes
This bike is available in 4 sizes. They vary from 158 cm – 199 cm (5.18 ft – 6.53 ft). In short, it won’t be difficult to find the right one for you.
Dropper post
Jamis PORTAL C4 comes with a dropper post. If used correctly, a dropper post gives you more faith, maneuverability, and greater control over your bike.