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
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Reach
409mm
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Stack to Reach Ratio
1.52:1
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Seat Tube Length, C-TTT
600mm
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Top Tube Length, Effective/Horizontal HT Top
605mm
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Top Tube Length, Actual C-C
597mm
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Top Tube Slope
2.8deg
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Head Tube Angle
73.5deg
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Seat Tube Angle
72.5deg
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Head Tube Length
180mm
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Bottom Bracket Drop
65mm
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Bottom Bracket Height
274mm
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Chainstay Length
425mm
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Chainstay Length Horizontal
420mm
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Front-Center
619.4mm
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Front-Center Horizontal
616mm
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Wheelbase
1036mm
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Fork Offset/Rake
50mm
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Fork Length (Axle-To-Crown)
395mm
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Trail
48.3mm
mid/​neutral
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Mechanical Trail
46.3mm
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Wheel Flop
13.1mm
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Standover Height
866mm
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Tire to Pedal Spindle
110.4mm
170 mm cranks
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Pedal Spindle to Ground Clearance
104mm
170 mm cranks
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Build

Wheel Size
650B/27.5 in
584 mm BSD
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Tire Width
47mm
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Tire Width Max
2.35in
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Tire Outer Diameter
678mm
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Bike Length with Tires
1714mm
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Suspension Type
Rigid, non-suspension corrected
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Bar Type
Drop Bar
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Frame Material
Steel
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Fork Material
Steel
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Brake Type
Disc
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Meta

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