2018 Surly Bikes Bridge Club Base

Category
Rigid MTB
Design
Flat Bar, Rigid, non-suspension corrected
Frame
Steel
Fork
Steel
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
Average stack and reachvs category

Geometry

XS
SM
MD
LG
XL
Stack
553mm
567mm
576mm
590mm
609mm
Reach
376mm
397mm
419mm
434.5mm
444mm
Stack to Reach Ratio
1.47:1
1.43:1
1.37:1
1.36:1
1.37:1
Seat Tube Length, C-T
335.6mm
406.4mm
457.2mm
508mm
558.8mm
Top Tube Length, Effective/Horizontal Center
545mm
570mm
595mm
615mm
630mm
Top Tube Length, Actual C-C
534mm
547.5mm
570mm
591.5mm
610.3mm
Top Tube Slope
29.6deg
22.4deg
13.6deg
10.9deg
7.8deg
Head Tube Angle
70deg
71deg
71deg
71deg
71deg
Seat Tube Angle
73deg
73deg
73deg
73deg
73deg
Head Tube Length
110mm
120mm
130mm
145mm
165mm
Bottom Bracket Drop
60mm
60mm
60mm
60mm
60mm
Bottom Bracket Height
293mm
293mm
293mm
293mm
293mm
Chainstay Length
435mm
435mm
435mm
435mm
435mm
Chainstay Length Horizontal
430.8mm
430.8mm
430.8mm
430.8mm
430.8mm
Front-Center
604.1mm
619.6mm
645mm
664.9mm
680.8mm
Front-Center Horizontal
601.2mm
616.7mm
642.2mm
662.2mm
678.2mm
Wheelbase
1032mm
1047.5mm
1073mm
1093mm
1109mm
Fork Offset/Rake
43mm
43mm
43mm
43mm
43mm
Fork Length (Axle-To-Crown)
420mm
420mm
420mm
420mm
420mm
Trail
82.7mm
very high
76.1mm
high
76.1mm
high
76.1mm
high
76.1mm
high
Mechanical Trail
77.7mm
71.9mm
71.9mm
71.9mm
71.9mm
Wheel Flop
26.6mm
23.4mm
23.4mm
23.4mm
23.4mm
Standover Height
709mm
750.5mm
780mm
812mm
845.5mm
Tire to Pedal Spindle
81.2mm
170 mm cranks
96.6mm
170 mm cranks
117mm
175 mm cranks
136.9mm
175 mm cranks
152.9mm
175 mm cranks
Pedal Spindle to Ground Clearance
123mm
170 mm cranks
123mm
170 mm cranks
118mm
175 mm cranks
118mm
175 mm cranks
118mm
175 mm cranks

Base Build

XS
SM
MD
LG
XL
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
2.4in
2.4in
2.4in
2.4in
2.4in
Tire Width Max
2.8in
2.8in
2.8in
2.8in
2.8in
Tire Outer Diameter
705.9mm
705.9mm
705.9mm
705.9mm
705.9mm
Bike Length with Tires
1737.9mm
1753.4mm
1778.9mm
1798.9mm
1814.9mm
Crank Length
170mm
170mm
175mm
175mm
175mm
Handlebar Width
710mm
710mm
710mm
710mm
710mm
Stem Length
80mm
80mm
90mm
90mm
100mm

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://surlybikes.com/bikes/bridge_club/geometry