Jamis PORTAL A2 2019
2019 Mountain
Estimate price |
2,999$
Weight | 14.74 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 29" -
Travel Front 130mm -
Travel Rear 130mm -
Fork RockShox Revelation RC
-
Groupset SLX, Race Face -
Suspension Full -
Drivetrain 1 × 11 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
XS
156cm - 166cm
SM
163cm - 174cm
MD
171cm - 182cm
LG
179cm - 189cm
XL
185cm - 195cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Triple-butted 6061 aluminum, 130mm travel 3VO suspension, Enduro® Max sealed bearing pivots, 1.5 - 1 1/8” tapered head tube, 12x148mm thru-axle, Internal dropper post routing, Custom Jamis upper chainguide mounts, ISCG05 lower chainguide mounts, Rock Shox Deluxe R DebonAir shock, 10mm hardware, replaceable derailleur hanger
Suspension Fork
Rock Shox Revelation RC 29”,15x110mm axle, air spring compression, rebound adjust, tapered alloy steerer, 35mm stanchions, 130mm travel
Rear Shock
Rock Shox Deluxe R DebonAir, 10mm hardware
Drivetrain
Rear Derailleur
Shimano SLX Shadow Plus, 11-speed
Front Derailleur
N/A
Shift Levers
Shimano SLX, 1x11-speed
Cassette
Shimano M7000, 11-speed, 11-46T
Crank
Race Face Ride, 32T
Bottom Bracket
Race Face BSA
Chain
KMC X11, 11-speed
Chain Guide
None included (custom Jamis upper mounts)
Pedals
N/A
Wheels
Front Hub
Formula sealed bearing, 6-bolt, 15x110mm front, 12x148mm rear
Rear Hub
Formula sealed bearing, 6-bolt, 15x110mm front, 12x148mm rear
Rims
WTB ST i25 TCS 29” tubeless rims, 32H, Formula sealed bearing 15x110mm front & 12x148mm rear 6-bolt disc hubs, stainless spokes
Spokes
Stainless
Tires
Vittoria Martello 29 x 2.35”, TNT tubeless
Brakes
Brakes
Shimano MT500 hydraulic disc, 180mm 6-bolt rotors
Brake Levers
Shimano MT500
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 1.5 I.S. integrated cup, 8mm cone spacer
Seat
Saddle
WTB Volt
Seatpost
KS E10i Internal Dropper, Southpaw remote
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | XS | SM | MD | LG | XL |
|---|---|---|---|---|---|
| Stack Reach Ratio | 1.5 mm | 1.45 mm | 1.4 mm | 1.35 mm | 1.31 mm |
| Bottom Bracket Height | 348 mm | 348 mm | 348 mm | 348 mm | 348 mm |
| Front Center | 686 mm | 712 mm | 737 mm | 762 mm | 788 mm |
| Rake | 48 mm | 49 mm | 50 mm | 49 mm | 50 mm |
| Trail | 103 mm | 102 mm | 101 mm | 102 mm | 101 mm |
| Stack | 599 mm | 608 mm | 617 mm | 627 mm | 636 mm |
| Reach | 399 mm | 420 mm | 441 mm | 463 mm | 484 mm |
| Top Tube Length | 562 mm | 587 mm | 612 mm | 637 mm | 662 mm |
| Seat Tube Angle | 74.5 ° | 74.5 ° | 74.5 ° | 74.5 ° | 74.5 ° |
| Seat Tube Length | 368 mm | 394 mm | 432 mm | 483 mm | 533 mm |
| Head Tube Angle | 67.5 ° | 67.5 ° | 67.5 ° | 67.5 ° | 67.5 ° |
| Head Tube Length | 95 mm | 105 mm | 115 mm | 125 mm | 135 mm |
| Chainstay Length | 439 mm | 439 mm | 439 mm | 439 mm | 439 mm |
| Wheelbase | 1124 mm | 1150 mm | 1175 mm | 1200 mm | 1226 mm |
| Bottom Bracket Drop | 26 mm | 26 mm | 26 mm | 26 mm | 26 mm |
| Standover Height | 740 mm | 763 mm | 758 mm | 763 mm | 783 mm |
| Wheels | 29" | 29" | 29" | 29" | 29" |
| Rider Min Height | 156 cm | 163 cm | 171 cm | 179 cm | 185 cm |
| Rider Max Height | 166 cm | 174 cm | 182 cm | 189 cm | 195 cm |
About this model
PORTAL A2 belongs to the Jamis Portal model. There are 30 bikes that carry this model name. Take a sneak peek at all Jamis Portal bikes models from 2019, by clicking here.
Model range prices
Jamis PORTAL A2 2019 is the cheapest bike model and costs 2999$. Jamis PORTAL A1 2019 is the most expensive one and costs 3999$.
Safety
Your safety should be the top priority when you go for a ride. In short, make sure that you always use a helmet, high visibility clothing, and proper lights when riding at night-time.
Trail bikes average price
According to our calculations, the average cost of a Trail bike that is reliable is 2762$. However, this doesn’t mean that if you spend less money on a Trail bike, you couldn’t get a decent one. To sum up, when you purchase your bike, make sure to check if it has reviews, and also do some components research.
Furthermore, this bike was made available in 2019 for 2999$. Comparing the average cost of a Trail bike to this one, you will see that PORTAL A2 price is 8.58% higher.
Trail bikes average weight
The average weight for Trail bikes is 12.98 kg (28.62 lbs). A lighter bike will give you some extra advantage when climbing. A heavier bike will have more speed for descents.
Jamis PORTAL A2 it’s weighing 14.74 kg (32.5 lbs). At this weight, is considerably heavier than average. In other words, this model is 13.56% heavier than the average Trail bike.
Internal Cable Routing
This bike has an internal cable routing. As a result, this helps to preserve the bike’s cables. No more cables around your bike.
PORTAL A2 components
Fork
The fork installed on this bike is the RockShox Revelation RC model. The travel on this model is 130mm. Bike forks are good shock absorbers and provide a smooth ride and a great experience. In conclusion, always look for a fork with decent travel when you buy a bike.
Fork material
PORTAL A2 has an aluminum fork, which is a lighter material. However, it is not as tough, nor durable as steel is.
Rear Shock
The shock that’s installed on this bike is Rock Shox Deluxe R DebonAir, with a travel distance of 130mm. Rear shocks give you increased comfort, control, and traction, which is important when cornering or braking. This allows you to ride faster on bumpy roads. In conclusion, to increase your riding experience, get a bike with a rear shock if possible.
Wheels size
As for the wheels, Jamis PORTAL A2 2019, has a 29″ aluminum model. These wheels are more forgiving when you go over roots, rocks, bumps, or other obstacles you encounter on your ride. However, these wheels are not ideal for smaller people.
Brakes
For your safety, it is important to have quality breaks on your bike. Jamis PORTAL A2 has Hydraulic Disc brakes installed. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, your safety is in good hands.
Sizes
There are 5 sizes available for this model. Rider height can be anywhere between 156 cm – 195 cm (5.12 ft – 6.4 ft). In short, it won’t be difficult to find the right one for you.
Dropper post
The Jamis model is also equipped with a dropper post. If you are a technical rider, a dropper post is essential. A dropper post provides increased safety while riding. The lever system, allows you to move your saddle up and down, which is very useful on climbs and descends.