2012 Specialized Bicycles Source Base

Category
Commuter
Design
Flat Bar, Rigid, non-suspension corrected
Frame
Aluminum
Fork
Aluminum
Features
Disc brake

Geometry

SM
MD
LG
XL
Seat Tube Length, C-T
440mm
485mm
530mm
570mm
Top Tube Length, Effective/Horizontal Unknown
570mm
580mm
600mm
620mm
Head Tube Angle
71deg
71.5deg
72deg
72deg
Seat Tube Angle
73.25deg
73.5deg
73deg
73deg
Head Tube Length
150mm
165mm
190mm
225mm
Bottom Bracket Drop
70mm
70mm
70mm
70mm
Bottom Bracket Height
271mm
271mm
271mm
271mm
Chainstay Length
445mm
445mm
445mm
445mm
Chainstay Length Horizontal
439.5mm
439.5mm
439.5mm
439.5mm
Front-Center
629mm
637mm
647mm
667mm
Front-Center Horizontal
625.5mm
633.5mm
642.5mm
663.5mm
Wheelbase
1065mm
1073mm
1082mm
1103mm
Fork Offset/Rake
51mm
51mm
51mm
51mm
Trail
63.5mm
mid/​neutral
60.3mm
mid/​neutral
57.2mm
mid/​neutral
57.2mm
mid/​neutral
Mechanical Trail
60mm
57.2mm
54.4mm
54.4mm
Wheel Flop
19.5mm
18.2mm
16.8mm
16.8mm
Standover Height
750mm
786mm
821mm
859mm
Tire to Pedal Spindle
118mm
170 mm cranks
121mm
175 mm cranks
131mm
175 mm cranks
151mm
175 mm cranks
Pedal Spindle to Ground Clearance
101mm
170 mm cranks
96mm
175 mm cranks
96mm
175 mm cranks
96mm
175 mm cranks

Base Build

SM
MD
LG
XL
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
Tire Width
30mm
30mm
30mm
30mm
Tire Width Max
37mm
Tire Outer Diameter
682mm
682mm
682mm
682mm
Bike Length with Tires
1747mm
1755mm
1764mm
1785mm
Crank Length
170mm
175mm
175mm
175mm
Handlebar Width
580mm
580mm
580mm
580mm
Stem Length
90mm
90mm
100mm
100mm
Stem Angle
-12deg

Published Sizing Recommendations

Height
175 cm
to
190 cm
PBH
80 cm
to
95 cm
Source:https://www.specialized.com/de/en/source-expert-disc/p/36235?color=80585-36235