OCR Frame Geometry

Sizing
Nominal sizing
Top Tube
Actual frame measurement
Head Tube
Seat Angle
Head Angle
Wheel Base
Rear Center
A
B
C
D
E
F
G
cm
mm
mm
mm
degrees
degrees
mm
mm
XS
42.0
520
420
118
75.0
71.0
986.6
418.0
S
46.5
535
465
136
74.0
72.0
988.7
418.0
M
50.0
555
500
160
73.3
73.0
995.5
418.0
L
55.5
585
555
184
73.0
73.0
1022.8
418.0
XL
58.5
610
585
209
73.0
73.0
1047.8
418.0