1986 Bridgestone Cycle Co. MB-2 Base 21in
Build
26 in × 1.9 in
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 503mm |
| Reach | 395.6mm |
| Stack to Reach Ratio | 1.27:1 |
| Seat Tube Length, Unknown | 535mm |
| Top Tube Length, Effective/Horizontal Center | 580mm |
| Top Tube Length, Actual C-C | 580mm |
| Top Tube Slope | 0deg |
| Head Tube Angle | 68deg |
| Seat Tube Angle | 70deg |
| Head Tube Length | 13mm |
| Bottom Bracket Drop | 5mm |
| Bottom Bracket Height | 322.8mm |
| Chainstay Length | 467mm |
| Chainstay Length Horizontal | 467mm |
| Front-Center | 645mm |
| Front-Center Horizontal | 644mm |
| Wheelbase | 1111mm |
| Fork Offset/Rake | 50mm |
| Trail | 78.5mm high |
| Mechanical Trail | 72.8mm |
| Wheel Flop | 27.3mm |
| Standover Height | 745mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 147.2mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 152.8mm |
Base Build
| Wheel Size | 26 inch (559mm BSD) |
| Tire Width | 1.9in |
| Tire Outer Diameter | 655.5mm |
| Bike Length with Tires | 1766.5mm |
| Crank Length | 170mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Rim |
Source:https://www.sheldonbrown.com/bridgestone/1986/pages/36b-bridgestone-geometry.html