2007 Surly Bikes Steamroller Base

	49 cm	53 cm	56 cm	59 cm	62	62
Stack	512.6mm	539mm	566.5mm	594.1mm	625.8mm	625.8mm
Reach	394.5mm	391.7mm	400.1mm	406mm	418.4mm	418.4mm
Stack to Reach Ratio	1.3:1	1.38:1	1.42:1	1.46:1	1.5:1	1.5:1
Seat Tube Length, C-TTT	490mm	530mm	560mm	590mm	620mm	620mm
Top Tube Length, Effective/Horizontal Center	529.5mm	547mm	568mm	587mm	608mm	608mm
Top Tube Length, Actual C-C	526.5mm	547mm	568mm	587mm	608mm	608mm
Top Tube Slope	1.2deg	0deg	0deg	0deg	0deg	0deg
Head Tube Angle	72.5deg	73deg	73.5deg	74deg	74deg	74deg
Seat Tube Angle	74.5deg	74deg	73.5deg	73deg	73deg	73deg
Head Tube Length	83mm	109mm	136mm	163mm	196mm	196mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm	70mm	70mm
Bottom Bracket Height	271mm	271mm	271mm	271mm	271mm	271mm
Chainstay Length	398mm	398mm	398mm	398mm	398mm	398mm
Chainstay Length Horizontal	391.8mm	391.8mm	391.8mm	391.8mm	391.8mm	391.8mm
Front-Center	578.2mm	579.1mm	591mm	599.9mm	621.3mm	621.3mm
Front-Center Horizontal	573.9mm	574.8mm	586.8mm	595.8mm	617.3mm	617.3mm
Wheelbase	965.7mm	966.6mm	978.6mm	987.6mm	1009.1mm	1009.1mm
Fork Offset/Rake	38mm	38mm	38mm	38mm	38mm	38mm
Fork Length (Axle-To-Crown)	375mm	375mm	375mm	375mm	375mm	375mm
Trail	67.7mm high	64.5mm mid/neutral	61.4mm mid/neutral	58.3mm mid/neutral	58.3mm mid/neutral	58.3mm mid/neutral
Mechanical Trail	64.5mm	61.7mm	58.9mm	56mm	56mm	56mm
Wheel Flop	19.4mm	18mm	16.7mm	15.4mm	15.4mm	15.4mm
Standover Height	748.5mm	780.5mm	807.9mm	835.2mm	865.3mm	865.3mm
Tire to Pedal Spindle	67.2mm 170 mm cranks	68.1mm 170 mm cranks	80mm 170 mm cranks	88.9mm 170 mm cranks	110.3mm 170 mm cranks	110.3mm 170 mm cranks
Pedal Spindle to Ground Clearance	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks

	49 cm	53 cm	56 cm	59 cm	62	62
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	28mm	28mm	28mm	28mm	28mm
Tire Width Max	38mm	38mm	38mm	38mm	38mm	38mm
Tire Outer Diameter	682mm	682mm	682mm	682mm	682mm	682mm
Bike Length with Tires	1647.7mm	1648.6mm	1660.6mm	1669.6mm	1691.1mm	1691.1mm

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

Track/Fixed-gear

Source:https://surlybikes.com/uploads/downloads/Surly_2007_Cat.pdf, default geometry

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2007 Surly Bikes Steamroller Base

Geometry

Base Build

Stack and Reach vs. Category Trend