1988 Trek Bikes 400 series Base
- Category
- Performance Road
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Steel
- Fork
- Steel
- Features
- Rim brake
Geometry
21” | 21” | Large | 22.5” | 18” | 19” | 24” | 25.5” | |
Stack | 537.6mm | 537.6mm | 575.2mm | 575.2mm | — | — | — | — |
Reach | 384.8mm | 384.8mm | 393.3mm | 393.3mm | — | — | — | — |
Stack to Reach Ratio | 1.4:1 | 1.4:1 | 1.46:1 | 1.46:1 | — | — | — | — |
Seat Tube Length, C-C | 526mm | 526mm | 565mm | 565mm | 462mm | 489mm | 616mm | 640mm |
Top Tube Length, Effective/Horizontal Center | 545mm | 545mm | 564mm | 564mm | — | — | — | — |
Top Tube Length, Actual C-C | 545mm | 545mm | 564mm | 564mm | 529mm | 535mm | 581mm | 598mm |
Top Tube Slope | 0deg | 0deg | 0deg | 0deg | — | — | — | — |
Head Tube Angle | 72deg | 72deg | 73deg | 73deg | 72deg | 72deg | 73deg | 73deg |
Seat Tube Angle | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg |
Head Tube Length | — | — | 145mm | — | — | — | — | — |
Bottom Bracket Drop | 72mm | 72mm | 72mm | 72mm | 72mm | 72mm | 72mm | 72mm |
Bottom Bracket Height | 264mm | 264mm | 242mm | 264mm | 264mm | 264mm | 264mm | 264mm |
Chainstay Length | 430mm | 430mm | 430mm | 430mm | 430mm | 430mm | 430mm | 430mm |
Chainstay Length Horizontal | 423.9mm | 423.9mm | 423.9mm | 423.9mm | 423.9mm | 423.9mm | 423.9mm | 423.9mm |
Front-Center | 589.5mm | 589.5mm | 607mm | 600.4mm | 567.7mm | 573.6mm | 616.3mm | 634.2mm |
Front-Center Horizontal | 585.1mm | 585.1mm | 596.1mm | 596.1mm | 563.1mm | 569.1mm | 612.1mm | 630.1mm |
Wheelbase | 1009mm | 1009mm | 1020mm | 1020mm | 987mm | 993mm | 1036mm | 1054mm |
Fork Offset/Rake | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm |
Trail | 61.9mm mid/neutral | 61.9mm mid/neutral | 48.9mm mid/neutral | 55.7mm mid/neutral | 61.9mm mid/neutral | 61.9mm mid/neutral | 55.7mm mid/neutral | 55.7mm mid/neutral |
Mechanical Trail | 58.8mm | 58.8mm | 46.8mm | 53.2mm | 58.8mm | 58.8mm | 53.2mm | 53.2mm |
Wheel Flop | 18.2mm | 18.2mm | 13.7mm | 15.6mm | 18.2mm | 18.2mm | 15.6mm | 15.6mm |
Standover Height | — | — | 823mm | 823mm | — | — | — | — |
Tire to Pedal Spindle | 83.5mm 170 mm cranks | 83.5mm 170 mm cranks | 118mm 175 mm cranks | 89.4mm 175 mm cranks | 61.7mm 170 mm cranks | 67.6mm 170 mm cranks | 110.3mm 170 mm cranks | 128.2mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 94mm 170 mm cranks | 94mm 170 mm cranks | 67mm 175 mm cranks | 89mm 175 mm cranks | 94mm 170 mm cranks | 94mm 170 mm cranks | 94mm 170 mm cranks | 94mm 170 mm cranks |
Base Build
21” | 21” | Large | 22.5” | 18” | 19” | 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 | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 25mm | 25mm | 3mm | 25mm | 25mm | 25mm | 25mm | 25mm |
Tire Outer Diameter | 672mm | 672mm | 628mm | 672mm | 672mm | 672mm | 672mm | 672mm |
Bike Length with Tires | 1681mm | 1681mm | 1648mm | 1692mm | 1659mm | 1665mm | 1708mm | 1726mm |
Crank Length | 170mm | 170mm | 175mm | 175mm | — | — | — | — |
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
Performance RoadSource:https://www.vintage-trek.com/images/trek/Trek88_1.pdf