1985 Trek Bikes 510 Base

	19"	21"	22.5"	24"	25.5"
Stack	488.7mm	532.8mm	569.5mm	604.9mm	642.3mm
Reach	390.3mm	391.2mm	391mm	395.5mm	394.4mm
Stack to Reach Ratio	1.25:1	1.36:1	1.46:1	1.53:1	1.63:1
Seat Tube Length, C-C	475mm	521mm	559mm	596mm	635mm
Top Tube Length, Effective/Horizontal Center	536mm	550mm	560mm	575mm	585mm
Top Tube Length, Actual C-C	536mm	550mm	560mm	575mm	585mm
Top Tube Slope	0deg	0deg	0deg	0deg	0deg
Head Tube Angle	72deg	72deg	73deg	73deg	73deg
Seat Tube Angle	73.5deg	73.5deg	73.5deg	73.5deg	73.5deg
Bottom Bracket Drop	72mm	72mm	72mm	72mm	72mm
Bottom Bracket Height	267mm	267mm	267mm	267mm	267mm
Chainstay Length	425mm	425mm	425mm	425mm	425mm
Chainstay Length Horizontal	418.9mm	418.9mm	418.9mm	418.9mm	418.9mm
Front-Center	579.6mm	596.5mm	605.4mm	619.3mm	635.2mm
Front-Center Horizontal	575.1mm	592.1mm	601.1mm	615.1mm	631.1mm
Wheelbase	994mm	1011mm	1020mm	1034mm	1050mm
Fork Offset/Rake	45mm	45mm	45mm	45mm	45mm
Trail	62.8mm mid/neutral	62.8mm mid/neutral	56.6mm mid/neutral	56.6mm mid/neutral	56.6mm mid/neutral
Mechanical Trail	59.8mm	59.8mm	54.1mm	54.1mm	54.1mm
Wheel Flop	18.5mm	18.5mm	15.8mm	15.8mm	15.8mm
Tire to Pedal Spindle	70.6mm 170 mm cranks	87.5mm 170 mm cranks	96.4mm 170 mm cranks	110.3mm 170 mm cranks	126.2mm 170 mm cranks
Pedal Spindle to Ground Clearance	97mm 170 mm cranks	97mm 170 mm cranks	97mm 170 mm cranks	97mm 170 mm cranks	97mm 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://drive.google.com/file/d/1KZrhVMpH6CVDMYXo4GIwkclOKE42iaP4/view

Geometry