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Check the bearing play as described above (a). The bearings may not
be done up too tightly or they will be destroyed quickly.
g
a
g
a
i
b
c
d
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note that the stem can press the fork steerer tube if the
screws are done up too tightly (b). In particular, models
with a carbon fork steerer tube react very sensitively to
overloading as a result of overtightening the shaft clamp
at the stem. risk of breakage! Follow the instructions for
adjustment given by the manufacturer of the carbon forks,
which are on the enclosed CD, if you make any changes to
the headset or stem.
Check the secure seating of the stem by taking the front
wheel between your legs and trying to turn the handlebars
and stem relative to the wheel (c). otherwise, a loose stem
can cause an accident.
Do not tighten up the screw at the top; this is only used to
set the play of the bearings (d).
There can be several reasons why the bearings cannot be
adjusted. If you are in doubt or if you have any questions,
then contact your WHEELER bicycle dealer.
SuSpenSion
GLoSSARY
Spring rate or hardness:
The force that is required to compress the spring by a certain spring
travel – measured in newtons per millimetre (N/mm) or pound per inch
(lbs/in). A higher spring rate requires more force for the travel. In pneu-
matic spring elements this corresponds to a higher pressure.
Spring preload:
Coil springs and elastomers can be pretensioned within a certain range.
Then the suspension only reacts when a greater load is applied. How-
ever, the spring rates are not changed as a result. Heavy riders cannot
compensate for springs that are too soft through a greater degree of
pretensioning.
negative spring travel ("sag"):
The spring travel
(e+f)
that is taken up by the rear structure or the fork
when the rider takes up his or her usual riding position at a standstill.
This is usually specified as a percentage of the overall spring travel.
compression damping:
Delays or brakes the initial compression. In especially high-quality
spring elements this is split into "High Speed" (for hard impacts = rapid
spring compression) and "Low Speed" (for slow compression, for ex-
ample, when riding out of the saddle) compression damping.
rebound damping (g):
Delays or brakes the rebound.
lockout (h):
A device to block the fork or the rear shock so that the spring element
does not cause bob when riding on tarred roads or smooth surfaces.
Not to be used off road.
platform damping:
Increases the ("Low Speed") compression damping rate and sup-
presses bob. As opposed to the lockout function, the suspension is not
blocked completely.
e
f
f
g
h
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