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Suspension
58
HP
Velotechnik
This is not necessary when you only want to
adjust the fork play.
Adjusting the bushing
The lower bushing is conically shaped at the
outside. It fits in a corresponding conically
shaped part of the outer tube.
By turning the lower nut the bearing is pushed
into the outer tube and thus squeezed to-
gether which reduces the play between the
bushing and the inner steerer tube.
First undo the two adjusting nuts by undoing
the lock nut that lies above and then undoing
or tightening the lower nut until the steering
moves smoothly and has optimum play.
Please note that the bushing has possibly to be
pushed out of its conically shaped fitting again
when the adjustment is too tight.
Then you tighten the lock nuts against the
lower nut and refit the dust bag in its slot
between the lock nuts.
If you have underseat steering, the adapter is
placed between the locking nut and the tight-
ening nut. It must not have any play when
mounted in the guiding and it has to be fixed
tightly with the nuts.
Mounting the fork
If the lower bearing (metric, inner diameter
40 mm) has been dismounted from the other
steerer tube, remount it with a tool (tube,
inner diameter approx. 40,5 mm, outer diam-
eter approx. 51,5 mm).
Push the outer tube of the fork from below
through the head tube until the lower bearing
fits the frame. Push the upper bearing (metric,
inner diameter 40 mm) on the outer tube and
fit it into the upper housing. Refit the bearing
cover and the stem.
It is very important that all bearings fit their
housings completely. For this purpose dis-
mount the front wheel and the brake and put
the bicycle on the ground. Put the tool above
the stem on the outer tube and press all
bearings into their beadings by hitting lightly
on the tool.
In order to check the correct fitting of the
bearings see if the following criteria are ful-
filled:
•
the bearing cover has no play between the
bearing and the stem, and it can only be
turned with effort
•
the upper edge of the bearing lies in ac-
cordance with the upper edge of the
frame.
Finally make the front wheel of your bicycle
bounce several times heavily on the ground to
check whether the bearings still fit tightly. The
criteria mentioned above still have to be
fulfilled after this test.