MSRP: $1,699
Manufacturer's Suggested Retail Price excludes shipping costs, dealer assembly/prep, taxes or import duties.
130mm rear wheel travel | HiLo bottom bracket adjust | Enduro Max sealed bearing pivots
12x148mm rear hub spacing | Custom Jamis upper chainguide mount | ISCG05 lower 2-bolt chainguide mount
PORTAL A1 Frameset
29"/27.5+
PORTAL FRAMESET DETAILS
Rear Shock eye-to-eye length:
Rear Shock Stroke:
Shock Hardware Upper:
Shock Hardware Lower:
Head Tube:
Head Set:
Bottom Bracket Shell:
Seat Post Diameter:
Seat Post Clamp Diameter:
Rear Brake Caliper Mount:
Chain Guide Upper:
Chain Guide Lower:
Rear Hub Spacing:
Rear Axle:
210mm
55mm
30mm x 10mm
20mm x 10mm
Tapered 1.125-1.5”
Integrated IS 42/28.6 IS 52/40
Threaded BSA 73mm
31.6mm
34.9mm
160mm Post Mount
Custom Jamis
ISCG05 2-Bolt
148mm
L174mm x M12 x P1.75
SIZE
XS/14.5"
S/15.5"
M/17"
L/19"
XL/21"
TT EFFECTIVE
22.0 / 560
23.0 / 585
24.0 / 610
25.0 / 635
26.0 / 660
HT ANGLE
LO 67.5° HI 68°
LO 67.5° HI 68°
LO 67.5° HI 68°
LO 67.5° HI 68°
LO 67.5° HI 68°
ST ANGLE
LO 74.5° HI 75°
LO 74.5° HI 75°
LO 74.5° HI 75°
LO 74.5° HI 75°
LO 74.5 HI 75°
CHAINSTAY
17.2 / 437
17.2 / 437
17.2 / 437
17.2 / 437
17.2 / 437
WHEELBASE
44.2 / 1122
45.2 / 1148
46.2 / 1173
47.2 / 1198
48.2 / 1224
BB DROP
LO 1.3 / 33 HI 1.0 / 26
LO 1.3 / 33 HI 1.0 / 26
LO 1.3 / 33 HI 1.0 / 26
LO 1.3 / 33 HI 1.0 / 26
LO 1.3 / 33 HI 1.0 / 26
HEADTUBE
3.7 / 95
4.1 / 105
4.5 / 115
4.9 / 125
5.3 / 135
STANDOVER
LO 28.7 / 731 HI 29.1 / 738
LO 29.7 / 754 HI 29.9 / 761
LO 29.5 / 749 HI 29.8 / 756
LO 29.7 / 754 HI 29.9 / 761
LO 30.5 / 774 HI 30.7 / 781
STACK
23.5 / 597
23.9 / 606
24.2 / 615
24.6 / 625
24.9 / 634
REACH
15.6 / 397
16.5 / 418
17.3 / 439
18.2 / 461
18.9 / 482
SPECIFICATIONS
FIT & SIZING
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Features and Specifications subject to change without notice.
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© Jamis Bikes. All rights reserved.
Specifications are subject to change without notice.
All bike and frame weights are based off pre-production painted frames. Weights may vary in final production.
Jamis is not responsible for typos or misprints.
Always ride safely and within limitations. Always obey all local traffic, safety and land access laws and always wear a helmet.
CPSC equipment is included with all new bicycles but not necessarily shown here. All action and lifestyle photography used by permission.