1989 Bridgestone Cycle Co. RB-1 Base 53cm

Build

700C/29 in × 25 mm

Insights

Average 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
526.7mm
Reach
377.4mm
Stack to Reach Ratio
1.4:1
Seat Tube Length, C-T
530mm
Seat Tube Length, C-C
512mm
Top Tube Length, Effective/Horizontal Center
525mm
Top Tube Length, Actual C-C
525mm
Top Tube Slope
0deg
Head Tube Angle
72deg
Seat Tube Angle
74.5deg
Bottom Bracket Drop
70mm
Bottom Bracket Height
266mm
Chainstay Length
415mm
Chainstay Length Horizontal
409.1mm
Front-Center
583mm
Front-Center Horizontal
578mm
Wheelbase
987mm
Fork Offset/Rake
50mm
Trail
56.6mm
mid/​neutral
Mechanical Trail
53.8mm
Wheel Flop
16.6mm
Standover Height
772.2mm
Tire to Pedal Spindle Distance
With 170 mm cranks
77mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
96mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
25mm
Tire Outer Diameter
672mm
Bike Length with Tires
1659mm
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