2017 Trek Bikes 520 Disc Base

	48	51	54	57	60	63
Stack	540mm	551mm	565mm	587mm	625mm	655mm
Reach	368mm	373mm	378mm	383mm	392mm	400mm
Stack to Reach Ratio	1.47:1	1.48:1	1.49:1	1.53:1	1.59:1	1.64:1
Seat Tube Length, C-T	440mm	482mm	512mm	543mm	575mm	605mm
Top Tube Length, Effective/Horizontal HT Top	520mm	531mm	543mm	557mm	583mm	603mm
Top Tube Slope	13.4deg	9.8deg	8deg	7deg	7.6deg	7.6deg
Head Tube Angle	69.5deg	70deg	71deg	71.8deg	71.8deg	72.3deg
Seat Tube Angle	74.3deg	74deg	73.8deg	73.5deg	73deg	72.8deg
Head Tube Length	115mm	121.5mm	140mm	160mm	200mm	230mm
Bottom Bracket Drop	75mm	75mm	70mm	70mm	70mm	70mm
Bottom Bracket Height	268mm	268mm	273mm	273mm	273mm	273mm
Chainstay Length	450mm	450mm	450mm	450mm	450mm	450mm
Chainstay Length Max	450mm	450mm	450mm	450mm	450mm	450mm
Chainstay Length Horizontal	443.7mm	443.7mm	444.5mm	444.5mm	444.5mm	444.5mm
Chainstay Length Horizontal Max	443.7mm	443.7mm	444.5mm	444.5mm	444.5mm	444.5mm
Front-Center	602mm	606mm	607.5mm	611.5mm	633.4mm	645.3mm
Front-Center Horizontal	597.3mm	601.3mm	603.5mm	607.5mm	629.5mm	641.5mm
Wheelbase	1041mm	1045mm	1048mm	1052mm	1074mm	1086mm
Wheelbase Max	1041mm	1045mm	1048mm	1052mm	1074mm	1086mm
Fork Offset/Rake	52mm	52mm	52mm	52mm	52mm	52mm
Trail	72.7mm high	69.5mm high	63.1mm mid/neutral	58mm mid/neutral	58mm mid/neutral	54.9mm mid/neutral
Mechanical Trail	68.1mm	65.3mm	59.7mm	55.1mm	55.1mm	52.3mm
Wheel Flop	23.9mm	22.3mm	19.4mm	17.2mm	17.2mm	15.9mm
Standover Height	713mm	741mm	768mm	794mm	826mm	854mm
Tire to Pedal Spindle	89mm 170 mm cranks	93mm 170 mm cranks	94.5mm 170 mm cranks	98.5mm 170 mm cranks	120.4mm 170 mm cranks	132.3mm 170 mm cranks
Pedal Spindle to Ground Clearance	98mm 170 mm cranks	98mm 170 mm cranks	103mm 170 mm cranks	103mm 170 mm cranks	103mm 170 mm cranks	103mm 170 mm cranks

	48	51	54	57	60	63
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	32mm	32mm	32mm	32mm	32mm	32mm
Tire Outer Diameter	686mm	686mm	686mm	686mm	686mm	686mm
Bike Length with Tires	1727mm	1731mm	1734mm	1738mm	1760mm	1772mm

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 Trek Bikes 520 Disc Base

Geometry

Base Build

Stack and Reach vs. Category Trend