2022 Bridge Bike Works Surveyor Base

	51	53	55	57	59
Stack	510mm	539mm	568mm	596mm	625mm
Reach	376mm	383mm	391mm	398mm	405mm
Stack to Reach Ratio	1.36:1	1.41:1	1.45:1	1.5:1	1.54:1
Seat Tube Length, C-T	459.4mm	487mm	532.2mm	559.8mm	587.9mm
Top Tube Length, Effective/Horizontal Unknown	512.7mm	527.4mm	548.5mm	568.9mm	584.2mm
Top Tube Slope	10deg	10deg	8deg	8deg	8deg
Head Tube Angle	71deg	71.3deg	72.5deg	72.8deg	73deg
Seat Tube Angle	74deg	74deg	73.5deg	73deg	73deg
Head Tube Length	90.1mm	119.7mm	145.3mm	173.6mm	203mm
Bottom Bracket Drop	80mm	80mm	78mm	78mm	78mm
Bottom Bracket Height	269mm	269mm	271mm	271mm	271mm
Chainstay Length	417mm	417mm	417mm	417mm	417mm
Chainstay Length Horizontal	409.3mm	409.3mm	409.6mm	409.6mm	409.6mm
Front-Center	585.7mm	600.2mm	598.7mm	611.9mm	625.1mm
Front-Center Horizontal	580.2mm	594.9mm	593.6mm	606.9mm	620.2mm
Wheelbase	989.5mm	1004.1mm	1003.3mm	1016.6mm	1029.9mm
Fork Offset/Rake	53.1mm	53.1mm	45.9mm	45.9mm	45.9mm
Fork Length (Axle-To-Crown)	382.5mm	382.5mm	382.5mm	382.5mm	382.5mm
Trail	64mm mid/neutral	62.1mm mid/neutral	61.9mm mid/neutral	60mm mid/neutral	58.7mm mid/neutral
Mechanical Trail	60.5mm	58.8mm	59.1mm	57.3mm	56.1mm
Wheel Flop	19.7mm	18.9mm	17.8mm	16.9mm	16.4mm
Tire to Pedal Spindle	66.7mm 170 mm cranks	81.2mm 170 mm cranks	79.7mm 170 mm cranks	92.9mm 170 mm cranks	106.1mm 170 mm cranks
Pedal Spindle to Ground Clearance	99mm 170 mm cranks	99mm 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://www.bridgebikeworks.com/shop/p/surveyor-hand-built-carbon-frameset

Geometry