2021 Surly Bikes Midnight Special Base with Enve Gravel Disc Fork 56cm

Build

650B/27.5 in × 47 mm

Insights

Somewhat aggressive 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
580mm
Reach
393mm
Stack to Reach Ratio
1.48:1
Seat Tube Length, C-TTT
560mm
Top Tube Length, Effective/Horizontal HT Top
570mm
Top Tube Length, Actual C-C
564mm
Top Tube Slope
2.6deg
Head Tube Angle
73deg
Seat Tube Angle
73deg
Head Tube Length
140mm
Bottom Bracket Drop
65mm
Bottom Bracket Height
274mm
Chainstay Length
425mm
Chainstay Length Horizontal
420mm
Front-Center
595.6mm
Front-Center Horizontal
592mm
Wheelbase
1012mm
Fork Offset/Rake
47mm
Fork Length (Axle-To-Crown)
395mm
Trail
54.5mm
mid/​neutral
Mechanical Trail
52.1mm
Wheel Flop
15.2mm
Standover Height
827mm
Tire to Pedal Spindle Distance
With 175 mm cranks
81.6mm
Pedal Spindle to Ground Clearance
With 175 mm cranks
99mm

Base with Enve Gravel Disc Fork Build

Wheel Size
650B, 27.5 inch (584mm BSD)
Tire Width
47mm
Tire Outer Diameter
678mm
Bike Length with Tires
1690mm
Crank Length
175mm
Handlebar Width
440mm
Stem Length
100mm
Stem Angle
6deg
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