2017 Surly Bikes Disc Trucker 26” Base

	42cm	46cm	50cm	52cm	54cm	56cm	58cm
Stack	497mm	503mm	532mm	550mm	568mm	588mm	606mm
Reach	367mm	371mm	375mm	375mm	379mm	388mm	394mm
Stack to Reach Ratio	1.35:1	1.36:1	1.42:1	1.47:1	1.5:1	1.52:1	1.54:1
Seat Tube Length, C-TTT	420mm	460mm	500mm	520mm	540mm	560mm	580mm
Top Tube Length, Effective/Horizontal Center	505mm	515mm	530mm	540mm	555mm	570mm	586mm
Top Tube Slope	8.5deg	4.6deg	3.6deg	3.5deg	3.4deg	3.4deg	3.4deg
Head Tube Angle	70deg	70deg	71deg	71deg	71deg	71deg	71deg
Seat Tube Angle	75deg	74.5deg	74deg	73.5deg	73deg	73deg	72.5deg
Head Tube Length	110.7mm	116.7mm	144mm	163mm	182mm	203mm	222mm
Bottom Bracket Drop	47mm	47mm	47mm	47mm	47mm	47mm	47mm
Bottom Bracket Height	285.8mm	285.8mm	285.8mm	285.8mm	285.8mm	285.8mm	285.8mm
Chainstay Length	460mm	460mm	460mm	460mm	460mm	460mm	460mm
Chainstay Length Max	460mm	460mm	460mm	460mm	460mm	460mm	460mm
Chainstay Length Horizontal	457.6mm	457.6mm	457.6mm	457.6mm	457.6mm	457.6mm	457.6mm
Chainstay Length Horizontal Max	457.6mm	457.6mm	457.6mm	457.6mm	457.6mm	457.6mm	457.6mm
Front-Center	580.9mm	587mm	591.1mm	597.4mm	608.2mm	624mm	635.4mm
Front-Center Horizontal	579mm	585.1mm	589.2mm	595.5mm	606.4mm	622.2mm	633.6mm
Wheelbase	1036.6mm	1042.7mm	1046.8mm	1053.1mm	1064mm	1079.8mm	1091.2mm
Wheelbase Max	1036.6mm	1042.7mm	1046.8mm	1053.1mm	1064mm	1079.8mm	1091.2mm
Fork Offset/Rake	45mm	45mm	45mm	45mm	45mm	45mm	45mm
Fork Length (Axle-To-Crown)	376mm	376mm	376mm	376mm	376mm	376mm	376mm
Trail	73.3mm high	73.3mm high	67mm high	67mm high	67mm high	67mm high	67mm high
Mechanical Trail	68.8mm	68.8mm	63.4mm	63.4mm	63.4mm	63.4mm	63.4mm
Wheel Flop	23.5mm	23.5mm	20.6mm	20.6mm	20.6mm	20.6mm	20.6mm
Standover Height	702.1mm	723.2mm	756.1mm	774.5mm	792.4mm	811.9mm	829.7mm
Tire to Pedal Spindle	78.1mm 170 mm cranks	84.2mm 170 mm cranks	88.2mm 170 mm cranks	94.5mm 170 mm cranks	105.4mm 170 mm cranks	121.1mm 170 mm cranks	132.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	115.8mm 170 mm cranks	115.8mm 170 mm cranks	115.8mm 170 mm cranks	115.8mm 170 mm cranks	115.8mm 170 mm cranks	115.8mm 170 mm cranks	115.8mm 170 mm cranks

	42cm	46cm	50cm	52cm	54cm	56cm	58cm
Wheel Size	26 in 559 mm BSD	26 in 559 mm BSD	26 in 559 mm BSD	26 in 559 mm BSD	26 in 559 mm BSD	26 in 559 mm BSD	26 in 559 mm BSD
Tire Width	2.1in	2.1in	2.1in	2.1in	2.1in	2.1in	2.1in
Tire Width Max	2.1in	2.1in	2.1in	2.1in	2.1in	2.1in	2.1in
Tire Outer Diameter	665.7mm	665.7mm	665.7mm	665.7mm	665.7mm	665.7mm	665.7mm
Bike Length with Tires	1702.3mm	1708.4mm	1712.5mm	1718.8mm	1729.7mm	1745.5mm	1756.9mm

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.

Learn more about the Upright/Aggressive Scale

Category Trend

Touring

Source:Bike Counterculture Geometry Database

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2017 Surly Bikes Disc Trucker 26” Base

Geometry

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Stack and Reach vs. Category Trend