1988 Mongoose Bicycles Switchback Base 20"
Build
26 in × 1.5 in
Insights
Design deviates from other sizes of Mongoose Bicycles Switchback
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 500mm |
| Reach | 417mm |
| Stack to Reach Ratio | 1.2:1 |
| Seat Tube Length, C-T | 509mm |
| Top Tube Length, Effective/Horizontal Unknown | 582mm |
| Top Tube Slope | 0deg |
| Head Tube Angle | 70deg |
| Seat Tube Angle | 71deg |
| Head Tube Length | 130mm |
| Bottom Bracket Drop | 30mm |
| Bottom Bracket Height | 287.6mm |
| Chainstay Length | 445mm |
| Chainstay Length Horizontal | 444mm |
| Front-Center | 638mm |
| Front-Center Horizontal | 636mm |
| Wheelbase | 1080mm |
| Fork Offset/Rake | 50mm |
| Fork Length (On-Axis) | 800mm |
| Trail | 62.4mm mid/neutral |
| Mechanical Trail | 58.6mm |
| Wheel Flop | 20.1mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 150.4mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 117.6mm |
Base Build
| Wheel Size | 26 inch (559mm BSD) |
| Tire Width | 1.5in |
| Tire Outer Diameter | 635.2mm |
| Bike Length with Tires | 1715.2mm |
| Crank Length | 170mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Rim |
Source:http://www.vintagemongoose.com/pdfs/mongoose_cat88.pdf