2019 Jamis Bicycles Dakar A2

Design
Flat Bar, Full suspension
Frame
Aluminum
Features
Disc brake
Very aggressive stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Very aggressive stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Very aggressive stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Very aggressive stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Very aggressive stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry

Geometry

XS / 14.5
S / 15.5
M / 17
L / 19
XL / 21
Stack
552.7mm
552.7mm
560.3mm
570.5mm
580.6mm
Reach
394.7mm
420.1mm
440.4mm
463.5mm
486.4mm
Stack to Reach Ratio
1.4:1
1.32:1
1.27:1
1.23:1
1.19:1
Seat Tube Length, C-T
368.3mm
393.7mm
431.8mm
482.6mm
533.4mm
Top Tube Length, Effective/Horizontal Center
544.8mm
570.5mm
595.9mm
621.3mm
646.7mm
Head Tube Angle
68deg
68deg
68deg
68deg
68deg
Seat Tube Angle, Unknown
75deg
75deg
75deg
75deg
75deg
Head Tube Length
99.3mm
99.3mm
109.5mm
119.6mm
129.8mm
Bottom Bracket Drop
18mm
18mm
18mm
18mm
18mm
Bottom Bracket Height
331.1mm
331.1mm
331.1mm
331.1mm
331.1mm
Chainstay Length
440.4mm
440.4mm
440.4mm
440.4mm
440.4mm
Chainstay Length Horizontal
440.1mm
440.1mm
440.1mm
440.1mm
440.1mm
Front-Center
660.3mm
685.6mm
711mm
736.4mm
759.3mm
Front-Center Horizontal
660mm
685.4mm
710.8mm
736.2mm
759.1mm
Wheelbase
1100.1mm
1125.5mm
1150.9mm
1176.3mm
1199.1mm
Fork Offset/Rake
45.7mm
45.7mm
47.5mm
45.9mm
42.1mm
Trail
91.8mm
very high
91.8mm
very high
89.8mm
very high
91.6mm
very high
95.7mm
very high
Mechanical Trail
85.1mm
85.1mm
83.3mm
84.9mm
88.8mm
Wheel Flop
31.9mm
31.9mm
31.2mm
31.8mm
33.3mm
Standover Height
730.8mm
743.5mm
759mm
756.4mm
759mm
Tire to Pedal Spindle
141.1mm
170 mm cranks
166.5mm
170 mm cranks
191.9mm
170 mm cranks
217.3mm
170 mm cranks
240.1mm
170 mm cranks
Pedal Spindle to Ground Clearance
161.1mm
170 mm cranks
161.1mm
170 mm cranks
161.1mm
170 mm cranks
161.1mm
170 mm cranks
161.1mm
170 mm cranks

A2 Build

XS / 14.5
S / 15.5
M / 17
L / 19
XL / 21
Wheel Size
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
Tire Width
2.25in
2.25in
2.25in
2.25in
2.25in
Tire Outer Diameter
698.3mm
698.3mm
698.3mm
698.3mm
698.3mm
Bike Length with Tires
1798.4mm
1823.8mm
1849.2mm
1874.6mm
1897.4mm

Stack and Reach vs. Category Trend

Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

Learn more about the Upright/Aggressive Scale
Source:https://www.jamisbikes.com/usa/dakar-a2.html