Bike-on-Bike

Generated by Bike Insights
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

Geometry

Stack
544mm
Reach
379mm
Stack to Reach Ratio
1.44:1
Seat Tube Length, C-TTT
500mm
Top Tube Length, Effective/Horizontal HT Top
540mm
Top Tube Length, Actual C-C
531mm
Top Tube Slope
4.9deg
Head Tube Angle
72deg
Seat Tube Angle
73.5deg
Head Tube Length
110mm
Bottom Bracket Drop
65mm
Bottom Bracket Height
274mm
Chainstay Length
425mm
Chainstay Length Horizontal
420mm
Front-Center
590.6mm
Front-Center Horizontal
587mm
Wheelbase
1007mm
Fork Offset/Rake
50mm
Fork Length (Axle-To-Crown)
400mm
Trail
57.6mm
mid/​neutral
Mechanical Trail
54.8mm
Wheel Flop
16.9mm
Standover Height
778mm
Tire to Pedal Spindle
81.6mm
170 mm cranks
Pedal Spindle to Ground Clearance
104mm
170 mm cranks

Build

Wheel Size
650B/27.5 in
584 mm BSD
Tire Width
47mm
Tire Outer Diameter
678mm
Bike Length with Tires
1685mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Steel
Fork Material
Steel
Brake Type
Disc

Meta

Actions
Source
https://surlybikes.com/bikes/midnight_special/geometry
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