Operating instructions

Adjusting the handlebar height
Both the handlebar height and the stem length de-
termine how much your upper body will be inclined
forward. Lowering the AX-Lightness and engage
handlebars gives the rider a streamlined position and
brings more weight to bear on the front wheel. An
excessively low handlebar position may prove un-
comfortable and can strain wrists, arms, upper body
and neck. Seek the assistance of a qualied AX-Light-
ness and engage dealer, especially if you experience
pain or discomfort after set up and use.
Aheadset
®
-stems
Readjusting the Aheadset
®
by using spacers
On bicycles using a threadless headset system, also
referred to as Aheadset®-system, the stem is an inte-
gral part of the headset (a). To modify the seating po-
sition the stem can be dismounted and re-mounted
(b). Subsequently, the headset must be readjusted.
Observe the chapters “Mounting AX-Lightness
and engage Aheadset®-stems” and “Adjusting
the Aheadset®-headset”.
The vertical position of the handlebar position is de-
termined by the arrangement of the spacers (c). In
the case of ip-op models it is also possible to re-
verse the stem.
Unscrew the bolt at the top of the fork steerer tube
which serves to adjust the bearing preload and re-
move the Ahead cap. Release the bolts on either side
of the stem by two to three turns
(d) and remove
the stem from the fork (e). Now you can remove the
spacers. Reposition the spacers on the steerer tube
above and below the stem in order to position the
AX-Lightness and engage handlebars at the desired
height or remove the handlebars and bring the stem
in reverse position.
If you want to reduce the number of spacers
(f), you
have to shorten the steerer tube. This shortening is ir-
reversible. Shortening the steerer tube is a job for the
AX-Lightness and engage dealer. Have this work per-
formed only after you have found the ideal position.
Instead of shortening the steerer tube you have also
the option to modify the arrangement of the spacers.
For a test ride place the equal number of spacers you
have removed from below the stem above the stem
and vice versa.
Mount the AX-Lightness and engage components, as
described in the chapters “Mounting AX-Lightness
and engage Aheadset®-stems”, “Mounting AX-
Lightness or engage handlebars“ and ”Adjust-
ing the Aheadset®-headset” and check nally the
secure seat of the components
(g).
g
Keep in mind not to position more than 30
mm spacers below the AX-Lightness and
engage stem.
g
Have the fork steerer tube shortened imme-
diately, if the stacking height of the spacers
above the stem exceeds 5 mm.
100 101
Handlebars - Stem
a
b
c f
e
d
g