1989 Bianchi Tangent, Axis Base

	520
Stack	536.7mm
Reach	390.8mm
Stack to Reach Ratio	1.37:1
Seat Tube Length, C-T	520mm
Top Tube Length, Effective/Horizontal Center	555.5mm
Top Tube Length, Actual C-C	545mm
Top Tube Slope	4.1deg
Head Tube Angle	72deg
Seat Tube Angle	73deg
Bottom Bracket Drop	60mm
Bottom Bracket Height	286mm
Chainstay Length	430mm
Chainstay Length Horizontal	425.8mm
Front-Center	597.2mm
Front-Center Horizontal	594.2mm
Wheelbase	1020mm
Fork Offset/Rake	50mm
Trail	59.9mm mid/neutral
Mechanical Trail	56.9mm
Wheel Flop	17.6mm
Tire to Pedal Spindle	81.2mm 170 mm cranks
Pedal Spindle to Ground Clearance	116mm 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:1989 catalogue

Geometry