13.4 Suspension elements
If you have an Upstreet6 with the suspension fork
option, please take note of the following general
instructions on suspension forks .
The chassis must be adjusted to the rider's weight
and type of use by a FLYER specialist retailer to
ensure appropriate function of the suspension el-
ements .
The suspension elements must be set up in line
with the manufacturer's operating instructions. In
principle, this means that when riding over une-
ven ground, the action of the suspension element
must be noticeable but it must not be allowed to
be compressed all the way to the stop . If the rider
stands at the middle of the bicycle, the suspen-
sion element should compress to approximately
25% of the suspension travel .
Please note that the suspension may
need to be re-adjusted if you ride with
heavier loads, for example during a cy-
cle tour .
Instructions for adjusting the suspension el-
ements
The suspension elements can be adjusted to your
weight and driving style and the terrain . When ad-
justing the suspension, you should always make
just one change at a time and make a note of it .
This way, you will know exactly how each change
affects the handling of the bicycle.
The description can be applied to both the sus-
pension forks and the rear damper element . If an
instruction only applies to one of the two com-
ments, this is indicated .
This section describes the basic adjustment of air
spring elements .
Here, you can adjust two settings: the flexibility of
the suspension and the rebound of the damping .
Ask a FLYER specialist retailer to show
you how to adjust the suspension ele-
ments correctly .
Flexibility
The suspension elements are fitted with
a lockout that can suppress rebound or
tilting as needed, e .g . on steep asphalt
ascents . The following adjustment steps
can only be performed when the lockout
is open .
The flexibility is the path through which the sus-
pension element is compressed when the rider
stands at the centre of the bicycle . It tensions the
suspension element and holds the rear wheel un-
der slight loads or if the ground is slightly uneven .
This increases grip and traction on rough terrain .
As a rule, the flexibility is 25% of the total sus-
pension travel .
In order to adjust the flexibility of your suspension
element, you must configure the suspension stiff-
ness/air pressure . If you change the air pressure,
the overall stiffness of the suspension element
also changes . The more the suspension element
is pumped up, the harder it becomes . In order to
achieve an optimum balance between the manu-
facturer's recommended flexibility and the desired
stiffness, follow these instructions when adjusting
the suspension element:
Adjusting the flexibility
Ensure that the pressure stages on the fork and
rear shock are set to the "open" position .
Fill the air chamber, using the table as a guide .
To let air out of the air chamber, remove the air
cap and press the valve pin down or press the air
release button on the suspension pump .
The air pressure in the rear suspension
element must not exceed the maximum
value specified in the relevant operating
instructions .
There are guidelines on air pressure for certain
forks .
1 . Different air pressures or settings may
be necessary. Example: Different
driving styles and uses require a differ-
ent air pressure and flexibility. There-
fore, this adjustment procedure is just
a starting point .
2 . The valve cap must always be on the
suspension element while you are
riding so that dirt cannot get into the
valve .
Push the O-ring for the suspension path indicator
against the air chamber/the lower fork dip pipe .
Carefully position yourself centrally on the bike,
then get off again.
Important: if you exert too much force on the bike
while getting on and off, you will obtain imprecise
measurements .
Check the position of the O-ring on the housing
of the suspension element . Check whether the
flexibility is around 25%.
If the flexibility is lower than the value recom-
mended by the bicycle manufacturer, i .e . the
suspension element is compressed by less than
25%, reduce the air pressure .
If the flexibility is higher than the value recom-
mended by the bicycle manufacturer, increase the
air pressure . The air pressure in the rear damper
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