1988 Trek Bikes 400 series Base 18”
Build
700C/29 in × 25 mm
Insights
Design deviates from other sizes of Trek Bikes 400 series
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Seat Tube Length, C-C | 462mm |
| Top Tube Length, Actual C-C | 529mm |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 73.5deg |
| Bottom Bracket Drop | 72mm |
| Bottom Bracket Height | 264mm |
| Chainstay Length | 430mm |
| Chainstay Length Horizontal | 423.9mm |
| Front-Center | 567.7mm |
| Front-Center Horizontal | 563.1mm |
| Wheelbase | 987mm |
| Fork Offset/Rake | 45mm |
| Trail | 61.9mm mid/neutral |
| Mechanical Trail | 58.8mm |
| Wheel Flop | 18.2mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 61.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 94mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 25mm |
| Tire Outer Diameter | 672mm |
| Bike Length with Tires | 1659mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Rim |
Source:https://www.vintage-trek.com/images/trek/Trek88_1.pdf