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92
WHEELS
PUNCTURE
REPAIRING
PUNCTURES
Tyre punctures can happen to any cyclist. As long as
you have the necessary tools for changing tyres and
tubes and a spare tube or a tyre repair kit, this need
not mean the end of your cycle tour, however. For
bikes with quick-releases all you need for changing
tubes are two tyre levers and a pump; if your wheels
are secured with nuts or anti-theft lock you also need
a suitable wrench for removing the wheel.
WHEEL REMOVAL
If you have road bike caliper brakes, open the
quick-release lever at the brake (Shimano and
SRAM)
or shift the pin in the shift/brake lever unit at the
handlebars (Campagnolo).
If you have derailleur gears, you should shift the
chain to the smallest sprocket before removing
the rear wheel. This shifts the rear derailleur right
to the outside where it does not interfere with the
removal of the wheel.
Open the quick-release, as described in chapter
"How to use the quick-release". If you cannot re-
move the wheel after releasing the lever or nut,
it is probably still being held in place by drop-out
catches. They come as projections which jut into
the droup-outs. In these cases, just release the
quick-release adjusting nut by a few turns and slip
the wheel past the catch.
You will find it easier to remove the rear wheel, if
you pull the rear derailleur rearwards a little.
Lift your Canyon a little off the ground and give the
wheel a light blow with your hand so that it drops
out.
Shift to the smallest sprocket before dismounting the rear wheel
Opening the release lever at the brake
Drop-out catches at the fork
To remove the rear wheel pull the rear derailleur slightly to the rear
REMOVING CLINCHER AND FOLDING TYRES
Screw the valve cap and the fastening nut off the
valve and deflate the tyre completely.
Press the tyre from the rim side towards the centre
of the rim. You will find it easier to remove the tyre,
if you do this around its entire circumference.
Apply the plastic tyre lever to one bead of the tyre
about 5 cm left or right from the valve and lever the
tyre out of the rim. Hold the tyre lever tight in its
position.
Slip the second tyre lever between rim and tyre at
a point about ten centimeters beyond the first one
and lever the next portion of the bead over the edge
of the rim.
After levering a part of the tyre bead over the edge
of the rim you should normally be able to slip off
the whole tyre on one side by moving the tyre lever
around the whole circumference.
Now you can pull out the inner tube. Take care the
valve does not get caught, as this can damage the
inner tube.
Repair the puncture according to the operating in-
structions of the repair kit manufacturer.
PUNCTURE
WHEELS
93
Press the tyre towards the centre of the rim
Apply the tyre levers and lift the tyre bead over the rim edge
Remove the inner tube from the tyre
If the fabric of the tyre is destroyed by the
perforating object, replace the tyre as a
precaution.
Please read the operating instructions of
i
the brake and the gear manufacturer, en-
closed with the BikeGuard.
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