2018-2019 Surly Bikes Midnight Special Base 40cm

Build

650B/27.5 in × 47 mm

Insights

Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Surly Bikes Midnight Special

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
531mm
Reach
363mm
Stack to Reach Ratio
1.46:1
Seat Tube Length, C-TTT
400mm
Top Tube Length, Effective/Horizontal HT Top
500mm
Top Tube Length, Actual C-C
487mm
Top Tube Slope
14.9deg
Head Tube Angle
71deg
Seat Tube Angle
75.5deg
Head Tube Length
95mm
Bottom Bracket Drop
70mm
Bottom Bracket Height
269mm
Chainstay Length
425mm
Chainstay Length Horizontal
419.2mm
Front-Center
578.1mm
Front-Center Horizontal
573.8mm
Wheelbase
993mm
Fork Offset/Rake
50mm
Fork Length (Axle-To-Crown)
400mm
Trail
63.9mm
mid/​neutral
Mechanical Trail
60.4mm
Wheel Flop
19.7mm
Standover Height
720mm
Tire to Pedal Spindle Distance
With 170 mm cranks
69.1mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
99mm

Base Build

Wheel Size
650B, 27.5 inch (584mm BSD)
Tire Width
47mm
Tire Outer Diameter
678mm
Bike Length with Tires
1671mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Steel
Fork Material
Steel
Brake Type
Disc
Source:https://surlybikes.com/bikes/midnight_special/geometry