1981 Trek Bikes 710 Base 49
Build
700C/29 in × 23 mm
Insights
Design deviates from other sizes of Trek Bikes 710
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 475.6mm |
| Reach | 409.5mm |
| Stack to Reach Ratio | 1.16:1 |
| Seat Tube Length, C-T | 490mm |
| Top Tube Length, Effective/Horizontal Center | 530mm |
| Top Tube Length, Actual C-C | 530mm |
| Top Tube Slope | 0deg |
| Head Tube Angle | 73deg |
| Seat Tube Angle | 76deg |
| Bottom Bracket Drop | 72mm |
| Bottom Bracket Height | 262mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 429mm |
| Front-Center | 584.5mm |
| Front-Center Horizontal | 580mm |
| Wheelbase | 1009mm |
| Fork Offset/Rake | 55mm |
| Trail | 44.6mm low |
| Mechanical Trail | 42.7mm |
| Wheel Flop | 12.5mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 80.5mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 92mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 23mm |
| Tire Outer Diameter | 668mm |
| Bike Length with Tires | 1677mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Unknown |
Source:http://www.vintage-trek.com/images/trek/Trek81.pdf