1987 Trek Bikes 560EX Base 21"
Build
700C/29 in × 20 mm
Insights
Design deviates from other sizes of Trek Bikes 560EX
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 532.8mm |
| Reach | 391.2mm |
| Stack to Reach Ratio | 1.36:1 |
| Seat Tube Length, C-C | 521mm |
| Top Tube Length, Effective/Horizontal Center | 550mm |
| Top Tube Length, Actual C-C | 550mm |
| Top Tube Slope | 0deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 73.5deg |
| Bottom Bracket Drop | 72mm |
| Bottom Bracket Height | 259mm |
| Chainstay Length | 415mm |
| Chainstay Length Horizontal | 408.7mm |
| Front-Center | 586.7mm |
| Front-Center Horizontal | 582.3mm |
| Wheelbase | 991mm |
| Fork Offset/Rake | 42mm |
| Trail | 63.4mm mid/neutral |
| Mechanical Trail | 60.3mm |
| Wheel Flop | 18.6mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 85.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 89mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 20mm |
| Tire Outer Diameter | 662mm |
| Bike Length with Tires | 1653mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Rim |
Source:https://vintage-trek.com/images/trek/1987/87Trek21.jpg