1983 Trek Bikes 620 Base
- Category
- Touring
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Steel
- Fork
- Steel
- Features
- Rim brake
Geometry
22.5 | 19in | |
Stack | 569mm | — |
Reach | 386mm | — |
Stack to Reach Ratio | 1.47:1 | — |
Seat Tube Length, C-C | 560mm | — |
Seat Tube Length, Unknown | — | 475mm |
Top Tube Length, Effective/Horizontal Center | 560mm | — |
Top Tube Length, Effective/Horizontal Unknown | — | 536mm |
Top Tube Length, Actual C-C | 560mm | — |
Top Tube Slope | 0deg | — |
Head Tube Angle | 73deg | 72deg |
Seat Tube Angle | 73deg | 73.5deg |
Bottom Bracket Drop | 72mm | 72mm |
Bottom Bracket Height | 271mm | 271mm |
Chainstay Length | 440mm | 470mm |
Chainstay Length Horizontal | 434.1mm | 464.5mm |
Front-Center | 598.3mm | 585mm |
Front-Center Horizontal | 593.9mm | 580.6mm |
Wheelbase | 1028mm | 1045mm |
Fork Offset/Rake | 55mm | 52mm |
Trail | 47.4mm mid/neutral | 56.8mm mid/neutral |
Mechanical Trail | 45.3mm | 54mm |
Wheel Flop | 13.2mm | 16.7mm |
Tire to Pedal Spindle | 85.3mm 170 mm cranks | 72mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 101mm 170 mm cranks | 101mm 170 mm cranks |
Base Build
22.5 | 19in | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 32mm | 32mm |
Tire Outer Diameter | 686mm | 686mm |
Bike Length with Tires | 1714mm | 1731mm |
Crank Length | 170mm | — |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
TouringSource:http://www.vintage-trek.com/TrekBrochure1983Part1.htm, https://www.vintage-trek.com/images/trek/85TrekTouring.pdf