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
620mm
Reach
409mm
Stack to Reach Ratio
1.52:1
Seat Tube Length, C-TTT
600mm
Top Tube Length, Effective/Horizontal HT Top
605mm
Top Tube Length, Actual C-C
597mm
Top Tube Slope
2.8deg
Head Tube Angle
73.5deg
Seat Tube Angle
72.5deg
Head Tube Length
180mm
Bottom Bracket Drop
65mm
Bottom Bracket Height
274mm
Chainstay Length
425mm
Chainstay Length Horizontal
420mm
Front-Center
619.4mm
Front-Center Horizontal
616mm
Wheelbase
1036mm
Fork Offset/Rake
40mm
Fork Length (Axle-To-Crown)
400mm
Trail
58.7mm
mid/​neutral
Mechanical Trail
56.3mm
Wheel Flop
16mm
Standover Height
866mm
Tire to Pedal Spindle
110.4mm
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
1714mm
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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