1988 Trek Bikes 400 series Base

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Steel
Fork
Steel
Features
Rim brake
Average stack and reachvs category

Geometry

Large
Stack
575.2mm
Reach
393.3mm
Stack to Reach Ratio
1.46:1
Seat Tube Length, C-C
565mm
Top Tube Length, Effective/Horizontal Center
564mm
Top Tube Length, Actual C-C
564mm
Top Tube Slope
0deg
Head Tube Angle
73deg
Seat Tube Angle
73.5deg
Head Tube Length
145mm
Bottom Bracket Drop
72mm
Bottom Bracket Height
242mm
Chainstay Length
430mm
Chainstay Length Horizontal
423.9mm
Front-Center
607mm
Front-Center Horizontal
596.1mm
Wheelbase
1020mm
Fork Offset/Rake
45mm
Trail
48.9mm
mid/​neutral
Mechanical Trail
46.8mm
Wheel Flop
13.7mm
Standover Height
823mm
Tire to Pedal Spindle
118mm
175 mm cranks
Pedal Spindle to Ground Clearance
67mm
175 mm cranks

Base Build

Large
Wheel Size
700C/29 in
622 mm BSD
Tire Width
3mm
Tire Outer Diameter
628mm
Bike Length with Tires
1648mm
Crank Length
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 Scale
Category Trend
Performance Road
Source:https://www.vintage-trek.com/images/trek/Trek88_1.pdf