THE PORTAL OFFERINGS
The Portal is a 130-millimeter trailbike with 29-inch wheels and a variety of build kits and frame materials to hit a range of price points. The C series frames feature a high modulus carbon construction with all the modern accouterments you would expect, including Boost axle spacing, internal cable routing for the shifting and dropper post, and Enduro Max sealed bearings. Jamis also offer the Portal C1 as a frameset for $2,799.
The A series bikes feature a triple-butted aluminum frame with the same geometry and features as the carbon version, at a lower price. The top-tier carbon Portal C1 sells for $8,499, and the more affordable C2 and C3 versions sell for 6,499 and $4,699 respectively. The baseline Portal A2 comes with the same geometry and many of the same features for an entry level price of $2,999.
That balanced ride feel that the Portal offers takes more to produce than just a fancy suspension design. With a capable geometry that can handle everything from six-day epic races to long cross-country missions, rowdier backcountry trails, to even some skill building days at mellower lift accessed shuttle parks, Jamis builds the Portal to do it all. If you are in the habit of shuttling trails, visiting bike parks or riding rough and chunky terrain, the Jamis Hardline could be the better 3VO option for you. During the course of our Dissected video shoots and initial rides, we took this bike out on a lot of trails to find its limits and see where it excels.
GEO & BUILD
Geometry on the C1 is slightly different compared to other Portals because of the 10mm longer travel fork. Our size large sports a 67- to 67.5-degreee head tube angle, 74- to 74.5-degree seat tube angle and 461mm reach. The stack height sits at 625mm with 17.2-inch chainstays and an overall wheelbase of 1,198mm.
If you couldn’t tell by the stance and coil-sprung rear end, the Portal C1 is Jamis’ more aggressive offering for riders looking to eek just a bit more shred out of their new trail machine. It comes with a 140mm fork whereas the rest of the Portal line specs a 130mm of travel, front and rear. The stout Fox Factory 36mm fork gave us the confidence to push this bike hard and the Fox Factory DHX2 rear shock controlled the rear end.
Drivetrain spec on the C1 features some of the best in the biz. SRAM XX1 Eagle drivetrain in the fancy oil slick color pops nicely against the desert storm and orange accents. Truvativ Descendant cranks with a 32t ring, TRP G-Spec Trail SL-4 brakes and Race Face cockpit round out the stop and go bits. Other favorites of the build include Stan’s Arch CB7 Carbon wheels with Neo hubs and Sapim Race spokes. The wheels are stiff, efficient and look great, we really liked them and found the Vittoria Martello tires to be fast rolling and sufficient, but could be an area more aggressive riders would seek to customize for their local terrain.