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100
WHEELS
PUNCTURE
MOUNTING WHEELS
Mounting the wheel is done in the reverse of dis-
mounting. Make sure the wheel is correctly seated
in the drop-outs and accurately centred between
the fork legs or the rear and chainstays. Check the
proper seat of the quick-release (see chapter "How to
use the quick-release") and connect, if necessary, the
brake cable immediately or close the release lever!
Improper mounting may cause malfunc-
tion or even brake failure. It is therefore
absolutely necessary to follow the manufacturer's
operating instructions enclosed with the delivery.
Checking the true running with brake pads
Witness line all around the side of the tyre
Close the quick-release lever (Shimano,
SRAM) or shift the pin in the shift/
brake-lever unit (Campagnolo) and check before
you set off again, whether the brake pads hit the
brake surfaces. Make sure the wheel is correctly
and firmly fixed in the drop-outs. After mounting
the wheel make sure the brake pads or the rim are
free of grease or other lubricants. Be sure to do a
brake test!
If the tyre fabric was, however, ruined by
a perforating object, replace the tyre to be
on the safe side.
THE HEADSET
The headset connects fork, stem, handlebars and
front wheel to the frame, but allows them to turn free-
ly as a unit. It must afford virtually no resistance to
turning, if your Canyon is to go straight, stabilizing it-
self as it runs. Shocks caused by uneven road surfac-
es subject the headset to considerable stress. It may
therefore happen to become loose and maladjusted.
CHECKING AND READJUSTING
Check the headset for play by placing your fingers
around the upper head cup.
Bring your weight to bear on the saddle, pull the
front brakes with your other hand and push your
Canyon firmly back and forth with the wheel re-
maining on the ground.
If there is play in the bearing, the upper head cap
will move noticeably relative to the lower cup.
Another way to check the headset is to lift the front
wheel a little off the ground and then let it drop. If
there is play in the bearing, you will hear a rattling
noise in this area.
To check the bearing for ease of running, lift the
frame until the front wheel no longer touches the
ground. Move the handlebars from the left to the
right. The front wheel should turn very easily from
far left to far right without catching anywhere. A
light tap on the handlebars should be enough to
turn the wheel to the side.
Riding the bike with a loose headset in-
creases the stress on fork and bearing
considerably. This may damage the bearing or
lead to a fork break with serious consequences!
Risk of an accident!
HEADSET
101
Check the headset for play by placing your fingers around the upper
head cup and by moving your Canyon back and forth with actuated
brake lever
To check the bearing for ease of running, lift the front wheel and
move it
Adjusting the headset requires a certain
!
amount of experience and should, there-
fore, be left to a skilled mechanic. If you want to
try it by yourself, be sure to carefully read the op-
erating instructions of the headset manufacturer
beforehand!
Check the secure seat of the stem after
having adjusted the bearings, by holding
the front wheel between your knees and trying to
twist the handlebars relative to the front wheel.
Otherwise, a loose stem can throw you off your
bicycle.
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