1989 Bridgestone Cycle Co. RB-1 Base 63cm

Build

700C/29 in × 25 mm

Insights

Very upright stack and reach vs trend of performance road bikes
Design deviates from other sizes of Bridgestone Cycle Co. RB-1

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
618.8mm
Reach
391.1mm
Stack to Reach Ratio
1.58:1
Seat Tube Length, C-T
630mm
Seat Tube Length, C-C
612mm
Top Tube Length, Effective/Horizontal Center
580mm
Top Tube Length, Actual C-C
580mm
Top Tube Slope
0deg
Head Tube Angle
73.5deg
Seat Tube Angle
73deg
Bottom Bracket Drop
65mm
Bottom Bracket Height
271mm
Chainstay Length
415mm
Chainstay Length Horizontal
409.9mm
Front-Center
606mm
Front-Center Horizontal
602.1mm
Wheelbase
1012mm
Fork Offset/Rake
45mm
Trail
52.6mm
mid/​neutral
Mechanical Trail
50.4mm
Wheel Flop
14.3mm
Standover Height
871.2mm
Tire to Pedal Spindle Distance
With 170 mm cranks
100mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
101mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
25mm
Tire Outer Diameter
672mm
Bike Length with Tires
1684mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Steel
Fork Material
Steel
Brake Type
Rim
Source:https://www.sheldonbrown.com/bridgestone/1989/index.htm