1992 Trek Bikes 520 Base

	17	19	21	23
Stack	433.7mm	482.7mm	530.5mm	579.2mm
Reach	405.8mm	406.5mm	401.9mm	397mm
Stack to Reach Ratio	1.07:1	1.19:1	1.32:1	1.46:1
Seat Tube Length, C-C	419mm	470mm	520mm	571mm
Top Tube Length, Effective/Horizontal Center	540mm	555mm	565mm	575mm
Top Tube Length, Actual C-C	540mm	555mm	565mm	575mm
Top Tube Slope	0deg	0deg	0deg	0deg
Head Tube Angle	70.5deg	71.5deg	71.5deg	71.5deg
Seat Tube Angle	73deg	73deg	73deg	73deg
Bottom Bracket Drop	48mm	48mm	48mm	48mm
Bottom Bracket Height	293mm	293mm	293mm	293mm
Chainstay Length	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	427.3mm	427.3mm	427.3mm	427.3mm
Front-Center	611.6mm	608.6mm	611.6mm	622.5mm
Front-Center Horizontal	609.7mm	606.7mm	609.7mm	620.7mm
Wheelbase	1037mm	1034mm	1037mm	1048mm
Fork Offset/Rake	40mm	40mm	40mm	40mm
Trail	78.3mm high	71.9mm high	71.9mm high	71.9mm high
Mechanical Trail	73.8mm	68.2mm	68.2mm	68.2mm
Wheel Flop	24.6mm	21.6mm	21.6mm	21.6mm
Standover Height	724mm	763mm	805mm	853mm
Tire to Pedal Spindle	100.6mm 170 mm cranks	97.6mm 170 mm cranks	100.6mm 170 mm cranks	111.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	123mm 170 mm cranks	123mm 170 mm cranks	123mm 170 mm cranks	123mm 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://www.vintage-trek.com/images/trek/1992/1992TrekBikecatalog.pdf

Geometry