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Setting the telescopic forks
The spring displacement of a telescopic fork can be determined with a
very simple method: attach a cable tie with medium strength to the
bottom of the sliding fork tube. The roughness of the terrain will push
up the cable tie along with the movement of the telescope, clearly
indicating how much of the available spring displacement is utilised. As
a rule of thumb, riding on an uneven road at a moderately fast speed
you should be able to utilise 85 – 90% of the spring displacement. If
you are only able to use less than this value, reduce the resistance of
the telescope. If the fork “knocks”, increase the tension of the springs!
The above adjustment is most easily performed on telescopic forks
operating with air: the air pressure needs to be increased. With steel
and plastic suspension elements, the spring displacement can be set
within narrow limits, by adjusting the pre-load of the springs. If this is
not sufficient, the telescopic fork has to be dismantled and the springs
replaced.
If the springs need to be replaced, only use parts approved by
the manufacturer. Before performing any modification on the
telescopic fork, always read carefully the user guide provided by the
manufacturer.
The correct setting of the telescope requires dexterity and special
tools. If you would rather not perform this setting by yourself, turn to a
specialist service centre!
In elastomer suspension systems the pads must be cleaned and
lubricated regularly.
Rear shock
Full suspension systems were first introduced on mountain bikes, but
their use is now becoming increasingly widespread on other bicycle
types, as well. Similarly to telescopic forks and spring seatposts, rear
shocks, too, enhance comfort. To achieve optimal suspension, the rear
shock must be set according to your weight and the intended use of your
bicycle.
Measure the distance between the bottom bracket of your bicycle and
the ground. Next, sit on your bicycle, and ask someone to measure the
new distance between the bottom bracket and the ground. Depending
on the bicycle's design, 10 – 40% of the maximum spring displacement
should be used. The measurement method described above, which uses
a cable tie, can be applied here, as well. On air-operated rear shocks the
spring action can be hardened by increasing the air pressure. The
tension of steel springs can be adjusted by pre-loading or replacing
them.
For the adjustment of an air-operated rear shock, a high-pressure pump
equipped with a manometer is recommended. If you cannot access the
valve of the spring, use an adapter.
You will find the exact method of setting your rear shock in the attached
user guide provided by its manufacturer.
Many bicycle types feature several boreholes in which the rear
shock can be inserted. By fitting the rear shock in different holes
you can make it harder or softer; this will also change the geometry of
the bicycle.
Even if your bicycle has a full suspension system, it is not
unbreakable. With incorrect use performing jumps or riding over
steps or large, sharp stones can cause serious damage to the bicycle,
which may lead to the breakage of the fork or frame. Spring shocks have
a complex structure. Always leave their maintenance and repair to a
specialist service centre!
ENGLISH
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