2019 Ron's Bikes Swamp Thing Base

	Small	Medium	Large
Stack	533.4mm	624.8mm	662.9mm
Reach	396.2mm	429.3mm	480.1mm
Stack to Reach Ratio	1.35:1	1.46:1	1.38:1
Seat Tube Length, C-T	419.1mm	508mm	551.2mm
Top Tube Length, Effective/Horizontal Center	541mm	604.5mm	665.5mm
Top Tube Length, Actual C-C	530.9mm	586.7mm	647.7mm
Top Tube Slope	11.5deg	11.5deg	9.5deg
Head Tube Angle	65deg	65deg	65deg
Seat Tube Angle	75deg	75deg	75deg
Head Tube Length	109.2mm	198.1mm	238.8mm
Bottom Bracket Drop	66mm	68.6mm	68.6mm
Bottom Bracket Height	289.7mm	299.6mm	299.6mm
Chainstay Length	442mm	449.6mm	449.6mm
Chainstay Length Horizontal	437mm	444.3mm	444.3mm
Front-Center	673.1mm	746.8mm	820.4mm
Front-Center Horizontal	670.4mm	749.5mm	818.1mm
Wheelbase	1107.4mm	1193.8mm	1262.4mm
Fork Offset/Rake	50.8mm	55.9mm	55.9mm
Trail	109.8mm very high	110mm very high	110mm very high
Mechanical Trail	99.5mm	99.7mm	99.7mm
Wheel Flop	42.1mm	42.2mm	42.2mm
Standover Height	749.3mm	777.2mm	835.7mm
Tire to Pedal Spindle	147.4mm 170 mm cranks	208.6mm 170 mm cranks	282.2mm 170 mm cranks
Pedal Spindle to Ground Clearance	119.7mm 170 mm cranks	129.6mm 170 mm cranks	129.6mm 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

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Geometry