1991 Bridgestone Cycle Co. RB-2 Base 56cm
Build
700C/29 in × 25 mm
Insights
Somewhat aggressive stack and reach vs trend of performance road bikes
Design deviates from other sizes of Bridgestone Cycle Co. RB-2
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 552.4mm |
| Reach | 406mm |
| Stack to Reach Ratio | 1.36:1 |
| Seat Tube Length, C-T | 560mm |
| Seat Tube Length, C-C | 542.5mm |
| Top Tube Length, Effective/Horizontal Center | 565mm |
| Top Tube Length, Actual C-C | 565mm |
| Top Tube Slope | 0deg |
| Head Tube Angle | 73.5deg |
| Seat Tube Angle | 73deg |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 266mm |
| Chainstay Length | 410mm |
| Chainstay Length Horizontal | 404mm |
| Front-Center | 590mm |
| Front-Center Horizontal | 586mm |
| Wheelbase | 990mm |
| Fork Offset/Rake | 45mm |
| Trail | 52.6mm mid/neutral |
| Mechanical Trail | 50.4mm |
| Wheel Flop | 14.3mm |
| Standover Height | 800mm |
| Tire to Pedal Spindle Distance With 175 mm cranks | 79mm |
| Pedal Spindle to Ground Clearance With 175 mm cranks | 91mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 25mm |
| Tire Outer Diameter | 672mm |
| Bike Length with Tires | 1662mm |
| Crank Length | 175mm |
| Stem Length | 100mm |
| 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/1991/pages/bridgestone-1991-35.htm