2019 Surly Bikes Big Fat Dummy Base SM

Build

700C/29 in × 3 in

Insights

Average stack and reach vs trend of cargo bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
569mm
Reach
411mm
Stack to Reach Ratio
1.38:1
Seat Tube Length, C-T
356mm
Top Tube Length, Effective/Horizontal Center
590mm
Top Tube Slope
23.9deg
Head Tube Angle
69deg
Seat Tube Angle
72.5deg
Head Tube Length
90mm
Bottom Bracket Drop
55mm
Bottom Bracket Height
332.2mm
Chainstay Length
875mm
Chainstay Length Horizontal
873.3mm
Front-Center
661mm
Front-Center Horizontal
658.7mm
Wheelbase
1532mm
Fork Offset/Rake
47mm
Fork Length (Axle-To-Crown)
468mm
Trail
98.3mm
very high
Mechanical Trail
91.8mm
Wheel Flop
32.9mm
Standover Height
740mm
Tire to Pedal Spindle Distance
With 170 mm cranks
103.8mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
162.2mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
3in
Tire Outer Diameter
774.4mm
Bike Length with Tires
2306.4mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Flat Bar
Frame Material
Steel
Fork Material
Steel
Brake Type
Disc
Source:https://surlybikes.com/bikes/big_fat_dummy/bike_info