1985 Trek Bikes 400 series Base Large

Build

700C/29 in × 21 mm

Insights

Somewhat upright stack and reach vs trend of performance road bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
604.9mm
Reach
395.5mm
Stack to Reach Ratio
1.53:1
Seat Tube Length, C-C
596mm
Top Tube Length, Effective/Horizontal Center
575mm
Top Tube Length, Actual C-C
575mm
Top Tube Slope
0deg
Head Tube Angle
73deg
Seat Tube Angle
73.5deg
Head Tube Length
184mm
Bottom Bracket Drop
72mm
Bottom Bracket Height
260mm
Chainstay Length
425mm
Chainstay Length Horizontal
418.9mm
Front-Center
619.3mm
Front-Center Horizontal
615.1mm
Wheelbase
1034mm
Fork Offset/Rake
45mm
Trail
54.5mm
mid/​neutral
Mechanical Trail
52.1mm
Wheel Flop
15.2mm
Tire to Pedal Spindle Distance
With 170 mm cranks
117.3mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
90mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
21mm
Tire Outer Diameter
664mm
Bike Length with Tires
1698mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Unknown
Fork Material
Unknown
Brake Type
Unknown
Source:vintage-trek.com