Aheadset ® -Stems Or Threadless System - Canyon ROAD BIKE Manual

52 ADJUSTMENT TO THE RIDER HANDLEBAR HEIGHT
AHEADSET ® -STEMS OR THREADLESS SYSTEM
(Aheadset is a registered trademark of the Dia-Com-
®
pe company)
On bikes with an Aheadset , the stem also serves to
®
adjust the headset bearing pressure. If you change
the position of the stem, you have to readjust the
bearings (see chapter "The headset"). The vertical
setting range is determined by the intermediate rings,
also referred to as spacers. With flip-flop stem mod-
els it is also possible to mount the stem the other way
round to alter the handlebar height.
Release the bolt at the top of the fork steerer tube
which serves to adjust the initial bearing pressure
and remove the Ahead cap.
Release the stem clamping bolts on either side of
the stem and pull the stem off the fork.
Now you can remove the spacers.
Apply a litte Canyon carbon assembly paste in the
stem clamping area.
Remount the stem entirely on the fork steerer tube
and slip the spacers you have removed above the
stem.
Also observe the enclosed operating
i
instructions of the component manufac-
turers.
The stem is one of the load bearing parts of
your bike and changes to it can impair
your safety. Note that the bolted connections of
the stem and the handlebars have to be tightened
to specified torques. For the prescribed values,
see chapter "Recommended tightening torques".
If you intend to make any changes, contact our
service hotline at +44 (0) 20 8501 2582.
Release the bolts on the side of the stem
Remove the spacers under the stem and place them above the stem
Apply some carbon assembly paste on the steerer tube
When removing the spacers you will have
i
to shorten the steerer tube. This change is
irreversible. For this reason, a shortening should
not be carried out until you are absolutely sure
about the seating position. Have this job carried
out by an experienced mechanic. We recommend
that you contact our Canyon workshop through
our service hotline at +44 (0) 20 8501 2582.
HANDLEBAR HEIGHT
If you want to turn around the stem, you have to addi-
tionally remove the handlebars.
To do so release the bolts of the stem front plate
clamping the handlebars and remove them careful-
ly.
Apply a little Canyon carbon assembly paste in this
clamping area and retighten the handlebars after
having turned around the stem.
Centre the handlebars accurately in the stem
clamp.
Retighten all bolts of the stem clamp with a torque
wrench by observing the correct tightening torques.
Please note that when using carbon assembly paste
you normally need not use the maximum tightening
torque. It will do already to tighten the bolts with
tightening torques that are 20 to 25 % below the
maximum tightening torques, i.e. 6 Nm instead of 8
Nm. That will prevent the material from damage.
Readjust the bearing.
Realign the stem by making sure it is in alignment
with the front wheel and at right angle relative to
the handlebars and the direction of motion. After
realignment of the stem retighten it and check
whether the handlebars resist twisting and turning
(see chapter "The headset").
Verify that the handlebar clamping area
i
is free of sharp edges. If you intend to
make any changes, contact our service hotline at
+44 (0) 20 8501 2582.
If you have a Canyon road bike with a
carbon steerer tube (which you can tell by
the black or black shining colour in the stem slit),
you have to be extremely careful when tightening
the stem. This is a job for experts only!
ADJUSTMENT TO THE RIDER
Readjust the bearing
Retighten the stem to the prescribed torque
Note that the bolted connections of stem
and handlebars have to be tightened to the
specified tightening torques. You will find the pre-
scribed values in chapter "Recommended tight-
ening torques" or in the enclosed manuals of the
component manufacturers. Contact, if necessary,
our service hotline at +44 (0) 20 8501 2582. If
you disregard the prescribed values, the handle-
bars or stem may come loose or break. This can
lead to a severe crash.
53