2020 Surly Bikes Lowside 26+ Rigid Fork

Design
Flat Bar, Rigid, non-suspension corrected
Frame
Steel
Fork
Steel
Features
Disc brake, Single-speed capable
Very aggressive stack and reachvs category
Very aggressive stack and reachvs category
Very aggressive stack and reachvs category
Very aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category

Geometry

XS
SM
MD
LG
XL
Stack
542.2mm
560.3mm
574.4mm
588.5mm
602.5mm
Reach
414.5mm
429.3mm
445.3mm
461mm
477mm
Stack to Reach Ratio
1.31:1
1.31:1
1.29:1
1.28:1
1.26:1
Seat Tube Length, C-T
316mm
366mm
416mm
466mm
516mm
Top Tube Length, Effective/Horizontal HT Top
570mm
590mm
610mm
630mm
650mm
Top Tube Length, Actual C-C
562.4mm
575.6mm
589.7mm
608.5mm
630.4mm
Top Tube Slope
25.4deg
21.5deg
17.3deg
13.4deg
9.8deg
Head Tube Angle
70deg
70deg
70deg
70deg
70deg
Seat Tube Angle
74deg
74deg
74deg
74deg
74deg
Head Tube Length
110mm
125mm
140mm
155mm
170mm
Bottom Bracket Drop
55mm
55mm
55mm
55mm
55mm
Bottom Bracket Height
300mm
300mm
300mm
300mm
300mm
Chainstay Length
425mm
425mm
425mm
425mm
425mm
Chainstay Length Horizontal
421.4mm
421.4mm
421.4mm
421.4mm
421.4mm
Front-Center
648.9mm
669.8mm
690.8mm
711.7mm
732.6mm
Front-Center Horizontal
646.6mm
667.6mm
688.6mm
709.6mm
730.6mm
Wheelbase
1068mm
1089mm
1110mm
1131mm
1152mm
Fork Offset/Rake
47mm
47mm
47mm
47mm
47mm
Fork Length (Axle-To-Crown)
420mm
420mm
420mm
420mm
420mm
Trail
79.2mm
high
79.2mm
high
79.2mm
high
79.2mm
high
79.2mm
high
Mechanical Trail
74.4mm
74.4mm
74.4mm
74.4mm
74.4mm
Wheel Flop
25.5mm
25.5mm
25.5mm
25.5mm
25.5mm
Standover Height
700mm
729mm
762mm
792mm
823mm
Tire to Pedal Spindle
123.9mm
170 mm cranks
144.8mm
170 mm cranks
160.8mm
175 mm cranks
181.7mm
175 mm cranks
202.6mm
175 mm cranks
Pedal Spindle to Ground Clearance
130mm
170 mm cranks
130mm
170 mm cranks
125mm
175 mm cranks
125mm
175 mm cranks
125mm
175 mm cranks

26+ Rigid Fork Build

XS
SM
MD
LG
XL
Wheel Size
26"
559 mm BSD
26"
559 mm BSD
26"
559 mm BSD
26"
559 mm BSD
26"
559 mm BSD
Tire Width
3in
3in
3in
3in
3in
Tire Outer Diameter
710mm
710mm
710mm
710mm
710mm
Bike Length with Tires
1778mm
1799mm
1820mm
1841mm
1862mm
Crank Length
170mm
170mm
175mm
175mm
175mm
Handlebar Width
820mm
820mm
820mm
820mm
820mm
Stem Length
60mm
60mm
60mm
60mm
60mm
Stem Angle
6deg
6deg
6deg
6deg
6deg

Published Sizing Recommendations

Height
142 cm
to
152 cm
to
165 cm
to
175 cm
to
185 cm
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
Hardtail Trail MTB
Source:https://surlybikes.com/bikes/lowside