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3.3.2
Chassis
The chassis comprises two components:
•
Frame and
•
steering system
3.3.2.1 Frame
The frame absorbs all forces which act on pedelec
from body weight, pedalling and the ground. The
frame also acts as a carrier for most components.
The frame geometry determines the pedelec's
ride performance. A frame comprises the
following elements:
2
3
4
5
6
Figure 4: Elements of the frame
1
Head tube
2
Top tube
3
Rear frame seat stay
4
Rear frame fork end
5
Chain stay
6
Seat tube
7
Down tube
The size of the frame must be adjusted to the
rider's height.
MY23P01 - 22_1.0_21.10.2022
1
7
Frame size for city and trekking bicycle,
folding bicycle and cargo bike
The tolerance for the frame height and its
associated top tube length is somewhat greater
for city bicycles due to the more upright riding
position. As the handlebars and saddle can be
adjusted to the rider's height, the range of
recommended frame sizes can be somewhat
wider.
Rider's height [cm]
155... 165
S
165... 175
M
175... 185
L
185... 195
XL
195... 215
XXL
Table 10: Recommended frame size for city and trekking
bicycles
Frame size for mountain bikes
The frame geometries for mountain bikes differ
depending on the type and area of use. The frame
size is not dependent on the wheel size. The
differences are already taken into account in the
recommended frame sizes.
Rider's height [cm]
150... 160
160... 170
170... 180
180... 190
190... 200
200... 215
Table 11: Recommended frame size for mountain bikes
Description
Frame size [cm]
43... 48
48... 53
53... 58
58... 62
62... 65
Frame size
Wheel size
[cm]
[inches]
33... 37
26
38... 43
26, 27.5
43... 47
26, 27.5, 29
47... 52
26, 27.5, 29
51... 56
27.5, 29
53... 60
27.5, 29
26
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