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3.5.3.3
Suspension fork
The stem and handlebars are attached to the top
end of the fork steerer. The axle is fastened to the
fork ends. The wheel is fastened to the axle.
Unlike rigid forks, suspension forks improve
contact with the ground and thus enhance comfort
using two functions:
•
Suspension and
•
Damping (optional function).
Suspension
A suspension fork deflects when a steel
suspension, air suspension or both suspension
types act on it.
A pedelec's suspension prevents an impact, such
as one caused by a stone lying in the pedelec's
path, from being channelled directly into the
rider's body via the suspension fork. The impact is
absorbed by the suspension system instead. This
causes the suspension fork to compress.
1
Figure 11: Without suspension (1) and with
suspension (2)
MY23I0a - 42_1.0_22.01.2024
Damping
After compressing, the suspension fork returns to
its original position. If there is a damper, it will
decelerate movement, preventing the suspension
system from springing back in an uncontrolled
manner and stopping the suspension fork
vibrating up and down. A distinction is made
between two types of dampers:
•
Rebound dampers,
•
Compression dampers.
Rebound dampers and compression dampers can
be optionally divided into two different sections:
•
High-speed compression dampers,
•
Low-speed compression dampers.
2
Description
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