Accessibility Widget: On | Off

2020 Jamis Portal A2 Bike

Create New Tag

Compare to other Bikes

Need more info? View our Trail Mountain Bikes buyer's guide.


Product Jamis Portal A2 Bike
Model Year 2020
Riding Type Trail
Rider Unisex
Sizes and Geometry
XS (low, high), SM (low, high), MD (low, high), LG (low, high), XL (low, high) View Geometry
Size XS (low, high) SM (low, high) MD (low, high) LG (low, high) XL (low, high)
Top Tube Length 560mm 585mm 610mm 635mm 660mm
Head Tube Angle 67.5°, 68.0° 67.5°, 68.0° 67.5°, 68.0° 67.5°, 68.0° 67.5°, 68.0°
Head Tube Length 95mm 105mm 115mm 125mm 135mm
Seat Tube Angle 74.5°, 75° 74.5°, 75° 74.5°, 75° 74.5°, 75° 74.5°, 75°
Seat Tube Length 14.5" 15.5" 17" 19" 21"
Bottom Bracket Height 33mm drop, 26mm drop 33mm drop, 26mm drop 33mm drop, 26mm drop 33mm drop, 26mm drop 33mm drop, 26mm drop
Chainstay Length 437mm 437mm 437mm 437mm 437mm
Wheelbase 1122mm 1148mm 1173mm 1198mm 1224mm
Standover 731mm, 738mm 754mm, 761mm 749mm, 756mm 754mm, 761mm 774mm, 781mm
Reach 397mm 418mm 439mm 461mm 482mm
Stack 597mm 606mm 615mm 625mm 634mm
* Additional Info Geometry adjustable via flip chip in rocker link.
Wheel Size 29"
Frame Material Aluminum
Frame Material Details Triple-butted 6061 aluminum, molded chainstay protection
Rear Travel 130mm
Rear Shock RockShox Deluxe Select R, DebonAir, 210mm x 55mm
Fork RockShox Revelation RC, air spring, compression adjust, rebound adjust
Fork Travel 130mm
Head Tube Diameter Tapered, 1.125" top, 1.5" bottom
Headset FSA Orbit IS integrated
Handlebar Race Face Ride, 760mm width, 20mm rise, 35mm diameter
Stem Race Face Ride, 50mm length, 35mm clamp
Grips Jamis lock-on
Brakes Magura MT4, Storm HC 6-bolt rotors (180mm rear, 160mm front)
Brake Levers Magura MT4, HC levers
Drivetrain 1x
Shifters SRAM SX Eagle, 12-speed
Front Derailleur N/A
Rear Derailleur SRAM SX Eagle, 12-speed
ISCG Tabs ISCG05 2-bolt
Chainguide N/A
Cranks SRAM X1 Eagle DUB
Chainrings SRAM X1 Eagle, 32 tooth
Bottom Bracket SRAM DUB BSA, 73mm threaded
Pedals N/A
Chain SRAM SX Eagle, 12-speed
Cassette SRAM Eagle PG-1210, 12-speed, 11-50 tooth
Rims WTB ST i25 TCS, 25mm internal width, tubeless, 32 hole
Hubs Formula, sealed bearing, 6-bolt rotor mounts, 32 hole, 110x15mm Boost front, 148x12mm Boost rear
Spokes Stainless steel
Tires Vittoria Martello, TNT, tubeless, 29" x 2.35"
Saddle WTB Volt
Seatpost KS Rage dropper, Southpaw remote
Seatpost Diameter 31.6mm
Seatpost Clamp Single bolt, 34.9mm
Rear Dropout / Hub Dimensions 148x12mm Boost
Max. Tire Size
Bottle Cage Mounts Yes (single)
Colors Charcoal
Warranty 2 years frame, 1 year components
Weight 33 lb 8 oz (15,195 g)
Miscellaneous 3VO (3 Variable Optimized) suspension
Internal cable routing
Geometry adjustable via flip chip in lower link shock mount
Compatible with 27.5"+ wheels
Price $2,999.99
More Info

More Products