1989 Trek Bikes 4 Series 420
- Category
- Sport Touring
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Steel
- Fork
- Steel
- Features
- Rim brake
Geometry
19" | 18" | 21" | 22.5" | 24" | 25.5" | |
Stack | 469.3mm | 443.4mm | 504.7mm | 542.3mm | 591.2mm | 614.2mm |
Reach | 385mm | 396.7mm | 394.5mm | 403mm | 405.6mm | 415.7mm |
Stack to Reach Ratio | 1.22:1 | 1.12:1 | 1.28:1 | 1.35:1 | 1.46:1 | 1.48:1 |
Seat Tube Length, C-T | 489mm | 462mm | 526mm | 565mm | 616mm | 640mm |
Top Tube Length, Effective/Horizontal Center | 525mm | 529mm | 545mm | 564mm | 581mm | 598mm |
Top Tube Length, Actual C-C | 525mm | 529mm | 545mm | 564mm | 581mm | 598mm |
Top Tube Slope | 0deg | 0deg | 0deg | 0deg | 0deg | 0deg |
Head Tube Angle | 72deg | 72deg | 72deg | 73deg | 73deg | 73deg |
Seat Tube Angle | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg |
Bottom Bracket Drop | 72mm | 72mm | 72mm | 72mm | 72mm | 72mm |
Bottom Bracket Height | 267mm | 267mm | 267mm | 267mm | 267mm | 267mm |
Chainstay Length | 430mm | 430mm | 430mm | 430mm | 430mm | 430mm |
Chainstay Length Horizontal | 423.9mm | 423.9mm | 423.9mm | 423.9mm | 423.9mm | 423.9mm |
Front-Center | 573.6mm | 567.7mm | 589.5mm | 600.4mm | 616.3mm | 634.2mm |
Front-Center Horizontal | 569.1mm | 563.1mm | 585.1mm | 596.1mm | 612.1mm | 630.1mm |
Wheelbase | 993mm | 987mm | 1009mm | 1020mm | 1036mm | 1054mm |
Fork Offset/Rake | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm |
Trail | 62.8mm mid/neutral | 62.8mm mid/neutral | 62.8mm mid/neutral | 56.6mm mid/neutral | 56.6mm mid/neutral | 56.6mm mid/neutral |
Mechanical Trail | 59.8mm | 59.8mm | 59.8mm | 54.1mm | 54.1mm | 54.1mm |
Wheel Flop | 18.5mm | 18.5mm | 18.5mm | 15.8mm | 15.8mm | 15.8mm |
Standover Height | — | — | — | — | 812.8mm | — |
Tire to Pedal Spindle | 64.6mm 170 mm cranks | 58.7mm 170 mm cranks | 80.5mm 170 mm cranks | 91.4mm 170 mm cranks | 107.3mm 170 mm cranks | 125.2mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 97mm 170 mm cranks | 97mm 170 mm cranks | 97mm 170 mm cranks | 97mm 170 mm cranks | 97mm 170 mm cranks | 97mm 170 mm cranks |
420 Build
19" | 18" | 21" | 22.5" | 24" | 25.5" | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 28mm | 28mm | 28mm | 28mm | 28mm | 28mm |
Tire Outer Diameter | 678mm | 678mm | 678mm | 678mm | 678mm | 678mm |
Bike Length with Tires | 1671mm | 1665mm | 1687mm | 1698mm | 1714mm | 1732mm |
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
Sport TouringSource:http://vintage-trek.com/images/trek/Trek89Brochure.pdf