2020 Surly Bikes Disc Trucker 700c Base

	56cm	58cm	60cm	62cm	64cm
Stack	613mm	632mm	651.5mm	670.5mm	685mm
Reach	387.5mm	391mm	400mm	402mm	412.5mm
Stack to Reach Ratio	1.58:1	1.62:1	1.63:1	1.67:1	1.66:1
Seat Tube Length, C-TTT	560mm	580mm	600mm	620mm	640mm
Top Tube Length, Effective/Horizontal Center	575mm	590mm	605mm	620mm	635mm
Top Tube Length, Actual C-C	562.5mm	576mm	591mm	604.5mm	621mm
Top Tube Slope	4.8deg	5.2deg	5deg	5.3deg	4.5deg
Head Tube Angle	72deg	72deg	72deg	72deg	72deg
Seat Tube Angle	73deg	72.5deg	72.5deg	72deg	72deg
Head Tube Length	175mm	195mm	215mm	235mm	250mm
Bottom Bracket Drop	80mm	80mm	80mm	80mm	80mm
Bottom Bracket Height	265mm	265mm	265mm	265mm	265mm
Chainstay Length	450mm	450mm	450mm	450mm	450mm
Chainstay Length Horizontal	442.8mm	442.8mm	442.8mm	442.8mm	442.8mm
Front-Center	613.4mm	622.3mm	637.7mm	646.1mm	652.1mm
Front-Center Horizontal	608.2mm	617.2mm	632.7mm	641.2mm	647.2mm
Wheelbase	1051mm	1060mm	1075.5mm	1084mm	1090mm
Fork Offset/Rake	45mm	45mm	45mm	45mm	45mm
Fork Length (Axle-To-Crown)	390mm	390mm	390mm	390mm	390mm
Trail	64.8mm mid/neutral	64.8mm mid/neutral	64.8mm mid/neutral	64.8mm mid/neutral	64.8mm mid/neutral
Mechanical Trail	61.6mm	61.6mm	61.6mm	61.6mm	61.6mm
Wheel Flop	19mm	19mm	19mm	19mm	19mm
Standover Height	811.9mm	829.8mm	847.8mm	866.5mm	883.6mm
Tire to Pedal Spindle	93.4mm 175 mm cranks	102.3mm 175 mm cranks	117.7mm 175 mm cranks	126.1mm 175 mm cranks	132.1mm 175 mm cranks
Pedal Spindle to Ground Clearance	90mm 175 mm cranks	90mm 175 mm cranks	90mm 175 mm cranks	90mm 175 mm cranks	90mm 175 mm cranks

Very Upright

Somewhat Upright

Average

Somewhat Aggressive

Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

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Source:https://surlybikes.com/bikes/disc_trucker

Geometry