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Jamis Portal C3

Jamis Portal C3
$4,499.95
Color:
OxBlood
Please select options Unavailable
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Details

THREE VARIABLE OPTIMIZED.

1. INSTANT CENTER
With the 3VO system's unique virtual pivot characteristics, we're able to combine the efficiency of a hardtail with the proper support of precisely-controlled active suspension. This is how every full-suspension bike should ride.

2. AXLE PATH
A rear wheel that stays planted while charging through rough terrain is crucial to providing an intimate connection with the trail. 3VO's initial rearward axle path allows the bike to be supple on small bumps and square edge hits while its tightly tuned relationship with the system's leverage ratio keeps the suspension highly reactive even while pedaling.

3. LEVERAGE RATIO
Imagine having two bikes in one, that's essentially what we've got with 3VO. The tuned multi-phase leverage ratio with initial rising rate provides an unparalleled pedaling platform while remaining keenly adept at sustaining repeated bumps without holdup.

Up to just beyond the sag point, the system employs a slight rising rate. Some designs claim an initial falling rate with high initial leverage improves sensitivity and responsiveness, but these claims seem more driven by a need to market a deficiency than by any genuine benefit. Why? Because up until the sag point of the bike, sensitivity and responsiveness are primarily felt when the suspension is able to extend, not compress.

- Dyad Pro High Modulus Carbon Fiber
- 130mm travel 3VO suspension
- Enduro Max sealed bearing pivots
- Fox Float DPS Performance Series EVOL shock, 3-position compression
- Fox 34 Performance Series Float 29”, 3-position adjust compression & lock-out
- Stans Flow S1 29” tubeless wheels
- Shimano SLX, 12-speed
- Shimano SLX 4-piston brakes

Our Bikes

At JRABS we do things differently from the other stores.  The first thing that you may notice when entering our store is that we don't stock very many bikes.  There's a number of reasons why, but mainly because we are mostly a service-oriented shop.  Most shops have a huge showroom and a tiny workshop.  We prefer a larger workshop.  Also, when you look at the number of brands we sell (All-City, Bianchi, Cinelli, Wilier-Triestina, Jamis, Kona, Surly and more), it would be impossible to stock all the resulting models in all of their colors and sizes (thousands!). So, we prefer personalizing your new bike to YOU, rather than steering you toward a bike that we happen to have in stock. 

30-Day Test Ride!*

You have a month to fall in love with your new bike!

We realize that you want to test ride your new bike, which is why we offer a 30-Day Test Ride.  We work with you to find the perfect bike that meets your wants, needs, fit, style, and budget.  After leaving with your new bike, you'll have 30 days to ride it in the real world -- not merely in a parking lot.  Take your bike home and ride it around the block, or do a century!  We think this is the only way to know truly whether your new bike is perfect for you.

 The best assembly!

At JRABS, our bicycle assembly process is the most comprehensive in the industry.  I can guarantee you that the bicycle that you purchase from me will last longer, ride smoother, be more efficient, and cost you less in the long run.  Here's why:

"Grease failure could come at any time. Factory original greases are often of the lowest quality and applied in very limited or erratic quantities. Frames are often inadequately cleaned at the factory, so bottom bracket and headset grease often has been contaminated with abrasive particles even before the bike has been ridden. For these reasons it is difficult to project the normal calendar time or elapsed miles that should occur between bearing overhauls. As a rule of thumb, 2,000-3,000 miles or two to three years of generally fair-weather riding should make a bike ready for an overhaul. The best method to determine whether grease has become due for replacement is inspection." -  John Barnett, Barnett's Manual DX

Bikes are shipped to bike shops in the same manner, no matter the brand.  What the bike shop does from there will make a huge difference in the bike's performance and longevity.  Here are the approximate times to assemble a new adult bicycle:

  • Mass merchant: 15 mins
  • Chain sports store: 20 mins
  • National chain bicycle store: 25mins
  • Local chain bicycle store: 30 mins
  • Independent bicycle shop: 45 mins
  • JRABS: 2-3 hours

When shopping for your new bike, ask them if they:

  • Opened up the hubs and injected better than factory grease (applies to loose ball bearing hubs).
  • For disc brake bikes: Did the brake pad bed-in proceedure
  • Pulled the rear wheel off, lubricated the freewheel threads or cassette splines and used a torque wrench to re-install.
  • Stressed the spokes then re-tensioned, re-trued the wheels
  • Lubricated the cables
  • Test rode your bike and then re-checked everything

We do all of this and and much more!  Buying your bike at a chain store?  Not a chance.  Here it's just two of us - Ethan and Travis.  We're they guys that will sell you your bike, build it, and service it (not handing it off to some mechanic you never meet).  We are here to make sure that you get the best bike for you!

*Bicycle must be returned in sell-able condition. Wear and tear and replacement of components and/or repairs will be deducted.

Geometry

Geometry Chart:
TT EFFECTIVE
Inch / mm
HT ANGLEST ANGLECHAINSTAY
Inch / mm
WHEELBASE
Inch / mm
BB DROP
Inch / mm
HEADTUBE
Inch / mm
STANDOVER
Inch / mm
STACK
Inch / mm
REACH
Inch / mm
S/15.5" 23.0 / 585 LO 67° HI 67.5° LO 74° HI 74.5° 17.2 / 437 45.2 / 1148 LO 1.3 / 33 HI 1.0 / 26 4.1 / 105 LO 29.7 / 754 HI 29.9 / 761 23.9 / 606 16.5 / 418
M/17" 24.0 / 610 LO 67° HI 67.5° LO 74° HI 74.5° 17.2 / 437 46.2 / 1173 LO 1.3 / 33 HI 1.0 / 26 4.5 / 115 LO 29.5 / 749 HI 29.8 / 756 24.2 / 615 17.3 / 439
L/19" 25.0 / 635 LO 67° HI 67.5° LO 74° HI 74.5° 17.2 / 437 47.2 / 1198 LO 1.3 / 33 HI 1.0 / 26 4.9 / 125 LO 29.7 / 754 HI 29.9 / 761 24.6 / 625 18.2 / 461
XL/21" 26.0 / 660 LO 67° HI 67.5° LO 74° HI 74.5° 17.2 / 437 48.2 / 1224 LO 1.3 / 33 HI 1.0 / 26 5.3 / 135 LO 30.5 / 774 HI 30.7 / 781 24.9 / 634 18.9 / 482

Specs

Frame Dyad Pro High Modulus Carbon Fiber, 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, Fox Float DPS Performance Series EVOL shock w/3-position compression, 10mm hardware, replaceable derailleur hanger
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
Wheels Stans Flow S1 29" tubeless wheels, 15x110mm axle front and 12x148mm rear NEO hubs, Sapim Race spokes
Tires Vittoria Mazza 29 x 2.4", TNT tubeless
Bottom Bracket Race Face BSA
Crankset Race Face Aeffect, 32T
Shifters Shimano SLX, 1x12-speed
Rear Derailleur Shimano SLX, 12-speed
Cassette/Freewheel Shimano M7100, 12-speed, 10-51T
Chain KMC X12, 12-speed
Brakes Shimano SLX M7120 4-piston Ice-Tech hydraulic disc, RT-70 180mm rotors
Handlebars Race Face Aeffect R, 780mm x 20mm rise, 35mm diameter
Tape/Grips Jamis Lock-On
Stem Race Face Aeffect R, 50mm extension, 35mm clamp diameter
Headset FSA Orbit IS Integrated, 8mm cone spacer
Seatpost Race Face Aeffect R Dropper, 1x remote
Saddle WTB Volt
Pedals Sold separately

* Subject to change without notice.

Videos

Part Numbers

Option UPC MPN Store SKU
OxBlood / 15.5-inch 845436084794 03-3670RD 210000088736
OxBlood / 17-inch 845436084800 03-3671RD 210000088737
OxBlood / 19-inch 845436084817 03-3672RD 210000088738
OxBlood / 21-inch 845436084824 03-3673RD 210000088739