26
Description
3.3.2
Frameset
The
Frameset
comprises two components:
• Frame and
• steering system.
3.3.2.1
Frame
The frame absorbs all forces which act on the
ebike
from body weight, pedalling and the
ground. The frame also acts as a carrier for
most components.
The frame geometry determines the
ebike's
ride performance.
3.3.2.2
Steering system
The steering system components are:
•
H
eadset
• Stem
• Handlebars
• Fork.
3.3.2.3 Steering headset
The steering headset (also known as a bike
headset or simply a headset) is the fork bearing
system in the frame. A distinction is made
between two different types:
• Conventional steering headsets for fork steerers
with thread and
• Steering headsets for threadless fork steerers,
what are known as headsets.
3.3.2.4
Stem
The stem is the connecting component between
the handlebars and the fork steerer tube. The
stem is used to adjust the handlebars to the rider.
The stem is used to adjust the handlebar height
and the gap between the handlebars and saddle
(see Section 6.5.6).
Quickly adjustable stems
Quickly adjustable stems are an extension to the
fork steerer. You can change the height and angle
of quickly adjustable stems without any tools. Up
to 3 settings can be adjusted, depending on the
model:
Figure 3: Example – BY.SCHULZ Speedlifter Twist Pro
SDS
1
Height adjustment
2
Twist function
3
Stem angle adjustment.
Adjusting the height and stem angle increase ride
comfort as different sitting positions can be
adopted on longer rides. The twist function saves
space when parking.
Figure 4: Twist function, using BY.SCHULZ as an example
2
1
3
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Страница 224: ...223 Documents 11 4 Charger operating instructions ABCDE ...
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