1989 Bianchi Limited Base

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Steel
Fork
Steel
Features
Rim brake
Very aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Average stack and reachvs category
Somewhat upright stack and reachvs category

Geometry

49cm
52cm
55cm
58cm
61cm
63cm
Stack
471.2mm
500.1mm
526.6mm
555.3mm
584mm
603.1mm
Reach
393.3mm
385mm
389mm
400.2mm
401.5mm
395.6mm
Stack to Reach Ratio
1.2:1
1.3:1
1.35:1
1.39:1
1.45:1
1.52:1
Seat Tube Length, C-T
490mm
520mm
550mm
580mm
610mm
630mm
Top Tube Length, Effective/Horizontal Center
530mm
530mm
550mm
570mm
580mm
580mm
Top Tube Length, Actual C-C
530mm
530mm
550mm
570mm
580mm
580mm
Top Tube Slope
0deg
0deg
0deg
0deg
0deg
0deg
Head Tube Angle
71.5deg
71.5deg
73deg
73deg
73deg
73deg
Seat Tube Angle
74deg
74deg
73deg
73deg
73deg
73deg
Bottom Bracket Drop
65mm
65mm
65mm
65mm
65mm
65mm
Bottom Bracket Height
266mm
266mm
266mm
266mm
266mm
266mm
Chainstay Length
410mm
410mm
410mm
410mm
410mm
410mm
Chainstay Length Horizontal
404.8mm
404.8mm
404.8mm
404.8mm
404.8mm
404.8mm
Front-Center
581.8mm
582.8mm
580.8mm
600.7mm
610.7mm
610.7mm
Front-Center Horizontal
578.2mm
579.2mm
577.2mm
597.2mm
607.2mm
607.2mm
Wheelbase
983mm
984mm
982mm
1002mm
1012mm
1012mm
Fork Offset/Rake
45mm
45mm
45mm
45mm
45mm
45mm
Trail
63.3mm
mid/​neutral
63.3mm
mid/​neutral
54.1mm
mid/​neutral
54.1mm
mid/​neutral
54.1mm
mid/​neutral
54.1mm
mid/​neutral
Mechanical Trail
60mm
60mm
51.8mm
51.8mm
51.8mm
51.8mm
Wheel Flop
19.1mm
19.1mm
15.1mm
15.1mm
15.1mm
15.1mm
Tire to Pedal Spindle
80.8mm
170 mm cranks
81.8mm
170 mm cranks
79.8mm
170 mm cranks
99.7mm
170 mm cranks
109.7mm
170 mm cranks
109.7mm
170 mm cranks
Pedal Spindle to Ground Clearance
96mm
170 mm cranks
96mm
170 mm cranks
96mm
170 mm cranks
96mm
170 mm cranks
96mm
170 mm cranks
96mm
170 mm cranks

Base Build

49cm
52cm
55cm
58cm
61cm
63cm
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
20mm
20mm
20mm
20mm
20mm
20mm
Tire Outer Diameter
662mm
662mm
662mm
662mm
662mm
662mm
Bike Length with Tires
1645mm
1646mm
1644mm
1664mm
1674mm
1674mm

Stack and Reach vs. Category Trend

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
Performance Road
Source:https://www.gringineer.com/blogs/gringineer-cycles-bike-blog/1989-bianchi-catalog/