1983 Specialized Bicycles Expedition Base 60

Build

700C/29 in × 28 mm

Insights

Somewhat aggressive stack and reach vs trend of touring bikes
Design deviates from other sizes of Specialized Bicycles Expedition

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
608.9mm
Reach
399.7mm
Stack to Reach Ratio
1.52:1
Seat Tube Length, C-C
600mm
Top Tube Length, Effective/Horizontal Center
580mm
Top Tube Length, Actual C-C
580mm
Top Tube Slope
0deg
Head Tube Angle
73.5deg
Seat Tube Angle
73.5deg
Bottom Bracket Drop
68.5mm
Bottom Bracket Height
270.5mm
Chainstay Length
450mm
Chainstay Length Horizontal
444.8mm
Front-Center
626mm
Front-Center Horizontal
622.2mm
Wheelbase
1067mm
Fork Offset/Rake
51mm
Trail
47.2mm
mid/​neutral
Mechanical Trail
45.3mm
Wheel Flop
12.9mm
Tire to Pedal Spindle Distance
With 170 mm cranks
117mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
100.5mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
28mm
Tire Outer Diameter
678mm
Bike Length with Tires
1745mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Steel
Fork Material
Steel
Brake Type
Rim
Source:http://crankbased.blogspot.com/2015/01/1983-specialized-expedition.html