2000 Surly Bikes Steamroller Base

	49 cm	53 cm	56 cm	59 cm
Stack	503mm	529.2mm	556.8mm	584.2mm
Reach	388.7mm	394.6mm	403.1mm	409mm
Stack to Reach Ratio	1.29:1	1.34:1	1.38:1	1.43:1
Seat Tube Length, C-TTT	490mm	530mm	560mm	590mm
Top Tube Length, Effective/Horizontal Center	529.5mm	547mm	568mm	587mm
Top Tube Length, Actual C-C	526.5mm	547mm	568mm	587mm
Top Tube Slope	1.2deg	0deg	0deg	0deg
Head Tube Angle	72.5deg	73deg	73.5deg	74deg
Seat Tube Angle	74.5deg	74deg	73.5deg	73deg
Head Tube Length	80mm	106mm	133mm	160mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm
Bottom Bracket Height	271mm	271mm	271mm	271mm
Chainstay Length	398mm	398mm	398mm	398mm
Chainstay Length Horizontal	391.8mm	391.8mm	391.8mm	391.8mm
Front-Center	578.2mm	579.1mm	591mm	599.9mm
Front-Center Horizontal	573.9mm	574.8mm	586.8mm	595.8mm
Wheelbase	965.7mm	966.6mm	978.6mm	987.6mm
Fork Offset/Rake	38mm	38mm	38mm	38mm
Fork Length (Axle-To-Crown)	368mm	368mm	368mm	368mm
Trail	67.7mm high	64.5mm mid/neutral	61.4mm mid/neutral	58.3mm mid/neutral
Mechanical Trail	64.5mm	61.7mm	58.9mm	56mm
Wheel Flop	19.4mm	18mm	16.7mm	15.4mm
Standover Height	748.5mm	780.5mm	807.9mm	835.2mm
Tire to Pedal Spindle	67.2mm 170 mm cranks	68.1mm 170 mm cranks	80mm 170 mm cranks	88.9mm 170 mm cranks
Pedal Spindle to Ground Clearance	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 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.

Category Trend

Source:https://surlybikes.com/uploads/downloads/2000_Surly_Catalog.pdf

Geometry