1987 Cannondale Bikes SM SM400

	16	18	20	22
Stack	386mm	435mm	483mm	531mm
Reach	418mm	429mm	432mm	442mm
Stack to Reach Ratio	0.92:1	1.01:1	1.12:1	1.2:1
Seat Tube Length, Unknown	406.4mm	457.2mm	508mm	558.8mm
Top Tube Length, Effective/Horizontal Unknown	520.7mm	565.2mm	546.1mm	590.6mm
Top Tube Slope	5deg	0deg	0deg	0deg
Head Tube Angle	71deg	71deg	71deg	71deg
Seat Tube Angle	73.5deg	73.5deg	73.5deg	73.5deg
Head Tube Length	127mm	127mm	127mm	127mm
Bottom Bracket Drop	1mm	0mm	0mm	0mm
Bottom Bracket Height	316.6mm	317.6mm	317.6mm	317.6mm
Chainstay Length	469.9mm	469.9mm	469.9mm	469.9mm
Chainstay Length Horizontal	469.9mm	469.9mm	469.9mm	469.9mm
Front-Center	579.9mm	626.9mm	626.9mm	654.8mm
Front-Center Horizontal	579.9mm	626.9mm	626.9mm	654.8mm
Wheelbase	1049.8mm	1096.8mm	1096.8mm	1124.7mm
Fork Offset/Rake	50.8mm	50.8mm	50.8mm	50.8mm
Trail	55.6mm mid/neutral	55.6mm mid/neutral	55.6mm mid/neutral	55.6mm mid/neutral
Mechanical Trail	52.6mm	52.6mm	52.6mm	52.6mm
Wheel Flop	17.1mm	17.1mm	17.1mm	17.1mm
Standover Height	685.8mm	736.6mm	789.9mm	838.2mm
Tire to Pedal Spindle	92.3mm 170 mm cranks	139.3mm 170 mm cranks	139.3mm 170 mm cranks	167.2mm 170 mm cranks
Pedal Spindle to Ground Clearance	146.6mm 170 mm cranks	147.6mm 170 mm cranks	147.6mm 170 mm cranks	147.6mm 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

Source:https://vintagecannondale.com/year/1987/1987.pdf

Geometry