2020 Sonder Frontier SX eagle Rigid Hobo

Category
Rigid MTB
Design
Flat Bar, Rigid, suspension corrected
Frame
Aluminum
Features
Disc brake
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category

Geometry

Small
Medium
Large
X-Large
Stack
566mm
580mm
594mm
613mm
Reach
390mm
420mm
440mm
460mm
Stack to Reach Ratio
1.45:1
1.38:1
1.35:1
1.33:1
Seat Tube Length, C-T
380mm
430mm
480mm
520mm
Top Tube Length, Effective/Horizontal HT Top
566mm
602mm
622mm
647mm
Top Tube Slope
22deg
17.2deg
13.1deg
10.7deg
Head Tube Angle
68deg
68deg
68deg
68deg
Seat Tube Angle
73deg
73deg
73deg
73deg
Head Tube Length
110mm
130mm
130mm
150mm
Bottom Bracket Drop
50mm
50mm
50mm
50mm
Bottom Bracket Height
322mm
322mm
322mm
322mm
Chainstay Length
445mm
445mm
445mm
445mm
Chainstay Length Horizontal
442.2mm
442.2mm
442.2mm
442.2mm
Front-Center
648.8mm
686.6mm
706.6mm
734mm
Front-Center Horizontal
646.8mm
684.8mm
704.8mm
732.3mm
Wheelbase
1089mm
1127mm
1147mm
1174.5mm
Fork Offset/Rake
51mm
51mm
51mm
51mm
Trail
95.3mm
very high
95.3mm
very high
95.3mm
very high
95.3mm
very high
Mechanical Trail
88.3mm
88.3mm
88.3mm
88.3mm
Wheel Flop
33.1mm
33.1mm
33.1mm
33.1mm
Standover Height
764mm
793mm
825mm
853mm
Tire to Pedal Spindle
106.8mm
170 mm cranks
144.7mm
170 mm cranks
164.6mm
170 mm cranks
192.1mm
170 mm cranks
Pedal Spindle to Ground Clearance
152mm
170 mm cranks
152mm
170 mm cranks
152mm
170 mm cranks
152mm
170 mm cranks

SX eagle Rigid Hobo Build

Small
Medium
Large
X-Large
Wheel Size
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
2.4in
2.4in
2.4in
2.4in
Tire Outer Diameter
743.9mm
743.9mm
743.9mm
743.9mm
Bike Length with Tires
1832.9mm
1870.9mm
1890.9mm
1918.4mm

Published Sizing Recommendations

Height
5 ft 2 in
to
5 ft 7 in
5 ft 6 in
to
5 ft 10 in
5 ft 9 in
to
6 ft 2 in
6 ft 2 in
to

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
Category Trend
Rigid MTB
Source:https://www.alpkit.com/sonder/bikes/sonder-frontier-sx-eagle-rigid-hobo