2022 Sonder Signal Base

Design
Flat Bar, Hardtail (Front suspension)
Frame
Steel
Suspension
130mm fork travel
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
601mm
606mm
615mm
624mm
Reach
420mm
440mm
465mm
495mm
Stack to Reach Ratio
1.43:1
1.38:1
1.32:1
1.26:1
Seat Tube Length, C-T
400mm
425mm
465mm
485mm
Top Tube Length, Effective/Horizontal HT Top
585mm
606mm
634mm
664mm
Top Tube Slope
22.2deg
19.5deg
15.8deg
14.1deg
Head Tube Angle
66deg
66deg
66deg
66deg
Seat Tube Angle
74deg
74deg
74deg
74deg
Head Tube Length
100mm
105mm
115mm
125mm
Bottom Bracket Drop
65mm
65mm
65mm
65mm
Bottom Bracket Height
312mm
312mm
312mm
312mm
Chainstay Length
425mm
425mm
430mm
435mm
Chainstay Length Horizontal
420mm
420mm
425.1mm
430.1mm
Front-Center
710mm
731.9mm
760.7mm
792.6mm
Front-Center Horizontal
707mm
729mm
757.9mm
789.9mm
Wheelbase
1127mm
1149mm
1183mm
1220mm
Fork Offset/Rake
42mm
42mm
42mm
42mm
Fork Length (Axle-To-Crown)
541mm
541mm
541mm
541mm
Trail
121.9mm
very high
121.9mm
very high
121.9mm
very high
121.9mm
very high
Mechanical Trail
111.4mm
111.4mm
111.4mm
111.4mm
Wheel Flop
45.3mm
45.3mm
45.3mm
45.3mm
Standover Height
730mm
738mm
760mm
772mm
Tire to Pedal Spindle
162.9mm
170 mm cranks
184.9mm
170 mm cranks
213.7mm
170 mm cranks
245.5mm
170 mm cranks
Pedal Spindle to Ground Clearance
142mm
170 mm cranks
142mm
170 mm cranks
142mm
170 mm cranks
142mm
170 mm cranks

Base 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
2.6in
2.6in
2.6in
2.6in
Tire Width Max
2.6in
2.6in
2.6in
2.6in
Tire Outer Diameter
754.1mm
754.1mm
754.1mm
754.1mm
Bike Length with Tires
1881.1mm
1903.1mm
1937.1mm
1974.1mm

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
Source:https://us.alpkit.com/products/sonder-signal-st-frame