2020 Surly Bikes Pack Rat Base 58cm 650b

Build

650B/27.5 in × 48 mm

Insights

Average stack and reach vs trend of commuter bikes
Design deviates from other sizes of Surly Bikes Pack Rat

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
595mm
Reach
402mm
Stack to Reach Ratio
1.48:1
Seat Tube Length, C-TTT
580mm
Top Tube Length, Effective/Horizontal Center
595mm
Top Tube Length, Actual C-C
588.5mm
Top Tube Slope
2.1deg
Head Tube Angle
74deg
Seat Tube Angle
72deg
Head Tube Length
175mm
Bottom Bracket Drop
55mm
Bottom Bracket Height
285mm
Chainstay Length
415mm
Chainstay Length Horizontal
411.3mm
Front-Center
605.2mm
Front-Center Horizontal
602.7mm
Wheelbase
1014mm
Fork Offset/Rake
44mm
Fork Length (Axle-To-Crown)
390mm
Trail
51.7mm
mid/​neutral
Mechanical Trail
49.7mm
Wheel Flop
13.7mm
Standover Height
839.5mm
Tire to Pedal Spindle Distance
With 175 mm cranks
90.2mm
Pedal Spindle to Ground Clearance
With 175 mm cranks
110mm

Base Build

Wheel Size
650B, 27.5 inch (584mm BSD)
Tire Width
48mm
Tire Outer Diameter
680mm
Bike Length with Tires
1694mm
Crank Length
175mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Steel
Fork Material
Steel
Brake Type
Rim
Features
Single-speed capable
Source:https://surlybikes.com/bikes/pack_rat