2023 Surly Bikes Preamble Drop Bar

Category
Commuter
Design
Drop Bar, Rigid, non-suspension corrected
Frame
Steel
Fork
Steel
Features
Disc brake
Somewhat upright stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Somewhat upright stack and reachvs category
Somewhat upright stack and reachvs category

Geometry

XS
SM
MD
LG
XL
Stack
517mm
535mm
567mm
605mm
643mm
Reach
352mm
381mm
391mm
404mm
421mm
Stack to Reach Ratio
1.47:1
1.4:1
1.45:1
1.5:1
1.53:1
Seat Tube Length, Unknown
410mm
505mm
565mm
605mm
645mm
Top Tube Length, Actual C-C
500mm
545mm
570mm
600mm
630mm
Top Tube Slope
14.8deg
5.6deg
2.9deg
2.9deg
2.7deg
Head Tube Angle
70deg
71deg
72deg
72deg
72deg
Seat Tube Angle
74deg
73deg
72.5deg
72deg
72deg
Head Tube Length
120mm
135mm
130mm
170mm
210mm
Bottom Bracket Drop
54mm
54mm
66mm
66mm
66mm
Bottom Bracket Height
284.5mm
284.5mm
292.5mm
292.5mm
292.5mm
Chainstay Length
420mm
420mm
435mm
435mm
435mm
Chainstay Length Horizontal
416.5mm
416.5mm
430mm
430mm
430mm
Front-Center
573mm
598.9mm
603.7mm
628.5mm
658.4mm
Front-Center Horizontal
570.5mm
596.5mm
600mm
625mm
655mm
Wheelbase
987mm
1013mm
1030mm
1055mm
1085mm
Fork Offset/Rake
47mm
47mm
44mm
44mm
44mm
Fork Length (On-Axis)
380mm
380mm
400mm
400mm
400mm
Trail
73.2mm
high
66.9mm
high
70.2mm
high
70.2mm
high
70.2mm
high
Mechanical Trail
68.8mm
63.2mm
66.8mm
66.8mm
66.8mm
Wheel Flop
23.5mm
20.6mm
20.6mm
20.6mm
20.6mm
Standover Height
722mm
776mm
826mm
863mm
901mm
Tire to Pedal Spindle
69.5mm
165 mm cranks
90.4mm
170 mm cranks
75.2mm
170 mm cranks
95mm
175 mm cranks
124.9mm
175 mm cranks
Pedal Spindle to Ground Clearance
119.5mm
165 mm cranks
114.5mm
170 mm cranks
122.5mm
170 mm cranks
117.5mm
175 mm cranks
117.5mm
175 mm cranks

Drop Bar Build

XS
SM
MD
LG
XL
Wheel Size
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
47mm
47mm
47mm
47mm
47mm
Tire Width Max
41mm
41mm
41mm
41mm
41mm
Tire Outer Diameter
677mm
677mm
717mm
717mm
717mm
Bike Length with Tires
1664mm
1690mm
1747mm
1772mm
1802mm
Crank Length
165mm
170mm
170mm
175mm
175mm
Stem Angle
7deg
7deg
7deg
7deg
7deg

Published Sizing Recommendations

Height
5 ft 0 in
to
5 ft 5 in
5 ft 4 in
to
5 ft 8 in
5 ft 7 in
to
6 ft 0 in
5 ft 11 in
to
6 ft 3 in
6 ft 2 in
to
6 ft 7 in

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
Commuter
Source:https://surlybikes.com/bikes/preamble