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Jamis Portal A1+

Jamis Portal A1+
Flat Ink
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Jamis hit the sweet spot with the Portal. With 130mm of front and rear travel, it offers enough suspension to take on any trail you have the guts to try, but is still svelte and nimble enough to pedal anywhere on the map. The 3VO suspension designed by Chris Currie of Speedgoat nails the bullseye of suspension kinematics: active and stable under pedaling and hard braking but sensitive to small bumps and ready for big, square-edged hits. Fox expertly controls that rear travel, as well as handling suspension duties up front with a Float DPS shock and Rhythm 34 fork, respectively. Portal A1+ grips terrain aggressively with meaty 27.5x2.8-inch Vittoria tires and comes with Shimano’s exemplary XT 1x11 drivetrain, so you’ll have a broad range of gears at your fingertips, perfect for aiming at a mountain and pressing “Play.” Bringing the Portal safely back to low orbit takes nothing but a gentle squeeze of the Magura Trail Sport hydraulic brake levers, delivering the power and confidence to master the trail. And, a KS dropper post ensures your body is in the right position for the task at hand, whether you’re grinding up the thirty-third switchback in a row or shredding down a buffed park jump line.


Frame Triple-butted 6061 aluminum, 130mm travel 3VO suspension, Enduro® Max sealed bearing pivots, 1.5 - 1 1/8" tapered head tube, Internal dropper post routing, Custom Jamis upper chainguide mounts, ISCG05 lower chainguide mounts, Fox Float DPS Performance Series EVOL shock w/3-position compression, replaceable derailleur hanger
Fork Fox Rhythm 34 Float 29" w/ sweep adjust compression & lock-out, air spring compression, rebound adjust, tapered alloy steerer, 130mm travel
Headset FSA Orbit 1.5 Zero-Stack internal cup, 8mm cone spacer
Rear Shock Fox Float DPS Performance Series EVOL shock w/3-position compression
Axles Front: 110 x 15mm
Rear: 148 x 12mm
Rims/Wheels Mavic XA35 27.5" tubeless
Tires Vittoria Martello 27.5 x 2.8", TNT tubeless
Crankset Race Face Aeffect
Chainrings 32T
Bottom Bracket Race Face BSA
Chain KMC X11, 11-speed
Rear Derailleur Shimano XT Shadow Plus, 11-speed
Cassette/Rear Cogs Shimano M7000, 11-speed, 11-46T
Shifters Shimano XT, 1x11-speed
Handlebars Race Face Aeffect, 780mm x 20mm rise, 35mm diameter
Tape/Grips Jamis Lock-On
Stem Race Face Aeffect, 50mm extension, 35mm clamp diameter
Brake Levers Magura Trail Sport
Brakes Magura Trail Sport hydraulic disc, 4-piston front/2-piston rear, Storm 180mm rotors
Saddle WTB Volt
Seat Post KS E20i Internal Dropper, Southpaw remote

* Subject to change without notice.


Part Numbers

Option UPC MPN
Flat Ink / 14.5-inch 845436064581 03-2040 : 03-2040IK
Flat Ink / 15.5-inch 845436064598 03-2040 : 03-2041IK
Flat Ink / 17-inch 845436064604 03-2040 : 03-2042IK
Flat Ink / 19-inch 845436064611 03-2040 : 03-2043IK
Flat Ink / 21-inch 845436064628 03-2040 : 03-2044IK