Details
Portal - noun: DOOR, ENTRANCE; especially a grand or imposing one.
Pass boldly through to the other side and impose on the most fun you've had on two wheels with the Jamis Portal C1. Its high-modulus carbon fiber frame swings your rear wheel through 130mm of micro-tracking 3VO suspension, renowned for its trail-contouring ability that goes hand-in-hand with big-hit burliness. A 140mm Fox 36 Float fork easily handles the rough stuff up front, ensuring your trail-spec'd Stan's NoTubes Arch carbon wheels track right where you want them, ready and willing to dig deep, wrapped in Vittoria's Martello tubeless tires.
The entire trail opens to you when you've got the proven combo of a huge-range SRAM XX1 Eagle 12-speed drivetrain and TRP G-Spec Trail SL brakes to ensure you have the leverage when you need it, the speed when you want it, and the power to reign it all in when the speed gets critical. And, the Portal will feel as familiar as walking out your front door thanks to a rider-tuned Race Face cockpit, and an instantly dialable stance, courtesy of your Fox Transfer dropper.

A dropper seatpost allows you to quickly lower and raise your seat to give you an ideal riding position. Dropping your seat creates a lower center of gravity for better control and maneuverability on steep descents, while raising it puts you at normal riding height for efficient pedaling.
Construction can include either hydraulic- or cable-actuated systems and the post’s travel can either be infinitely adjustable or stopped at set intervals, depending on the model.
Dropper seatposts come in standard lengths and diameters and vary by the amount of travel.
Pedals sold separately
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, MRP SXg lower chainguide, SLS 450lb Spring, high/low speed compression, high/low speed rebound, 10mm hardware, replaceable derailleur hanger |
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Fork | Fox Factory 36 Float 29" w/ 3-position adjust compression & lock-out,15x110mm axle, air spring compression, rebound adjust, tapered alloy steerer, 140mm travel |
Headset | FSA Orbit IS Integrated, 8mm cone spacer |
Rear Shock | Fox DHX2 Factory Series coil shock w/2-position compression switch |
Axles |
Front: 110 x 15mm Rear: 148 x 12mm |
Rims/Wheels | Stans Arch CB7 Carbon 29" tubeless |
Hubs | Stan's NEO |
Spokes | Sapim Race |
Tires | Vittoria Martello 29 x 2.35", TNT tubeless |
Crankset | Truvativ Descendant Carbon |
Chainrings | 32T |
Bottom Bracket | SRAM DUB |
Chain | SRAM XX1 Eagle, 12-speed |
Rear Derailleur | SRAM XX1 Eagle, 12-speed |
Cassette/Rear Cogs | SRAM XG1299, 12-speed, 10-50T |
Shifters | SRAM XX1 Eagle, 1x12-speed |
Handlebars | Race Face Turbine R, 780mm x 20mm rise, 35mm diameter |
Tape/Grips | Jamis Lock-On |
Stem | Race Face Turbine R, 50mm extension, 35mm clamp diameter |
Brakes | TRP G-Spec Trail SL 4-piston hydraulic disc, TR-33 180mm 6-bolt rotors |
Saddle | WTB Volt |
Seat Post | Fox Transfer Dropper, 1x remote |
* Subject to change without notice.