1989 Bianchi Grizzly Base 17.5”

Build

26 in × 1.9 in

Insights

Very aggressive stack and reach vs trend of rigid mtb bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
425.4mm
Reach
418.7mm
Stack to Reach Ratio
1.02:1
Seat Tube Length, C-T
444.5mm
Top Tube Length, Effective/Horizontal Center
550mm
Top Tube Length, Actual C-C
550mm
Top Tube Slope
0deg
Head Tube Angle
71deg
Seat Tube Angle
73deg
Bottom Bracket Drop
35mm
Bottom Bracket Height
292.8mm
Chainstay Length
430mm
Chainstay Length Horizontal
428.6mm
Front-Center
626.4mm
Front-Center Horizontal
625.4mm
Wheelbase
1054mm
Fork Offset/Rake
50mm
Trail
60mm
mid/​neutral
Mechanical Trail
56.7mm
Wheel Flop
18.5mm
Tire to Pedal Spindle Distance
With 170 mm cranks
128.7mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
122.8mm

Base Build

Wheel Size
26 inch (559mm BSD)
Tire Width
1.9in
Tire Outer Diameter
655.5mm
Bike Length with Tires
1709.5mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Flat Bar
Frame Material
Steel
Fork Material
Steel
Brake Type
Rim
Source:1989 Bianchi Catalog