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98
WHEELS
PUNCTURE
Wait for the solvent to evaporate completely before
you start to glue the tyre onto the rim. Gluing the tyre
is easiest with the wheel clamped in a truing stand or
mounted on an old fork clamped in a vice.
With liquid tyre glue you will need several layers to
create a good adhesive bed. Spread the tyre glue
evenly and as thinly as possible around almost the
entire circumference of the rim.
Leave a section of five to ten centimetres without glue
at a place just opposite the valve to make it easier to
remove the tyre again at a later date.
With a little practice you will be able to apply the glue
straight from the tube. If this does not work at first
you might find it easier to use a stiff brush. If you are
using tyre glue from a can you will need a brush in
any case. Let the tyre glue dry until it loses its sticky
liquid touch. This can take up to a few hours. In the
same way add another two thin films of glue and let
them dry. Leave the wheel as it is at least until the
next day.
Before mounting the tyre also apply a film of glue to
the base tape. To complete the adhesive bed add one
last film of glue. Let the topmost layer dry for a short
time and, while it still feels syrupy, place the wheel
on the ground with the valve hole facing upward. In-
flate the tyre until it starts to round and then stick
the valve through the valve hole and press it firmly
against the rim. Make sure the sides of the tyre do not
touch the adhesive bed, since your tyre will otherwise
look smudgy right away.
Applying the tyre glue directly from the tube
Stick the valve of the slightly inflated tube through the hole in the rim
Before dismounting a wheel, be sure to
!
read chapters "The wheels" and "How to
use the quick-release".
Have a look at the video to learn more
i
about the secure gluing of Continental tu-
bular tyres (www.conti-online.com)
If you have left the section opposite the valve hole
free of glue, you need not be concerned about glue
smearing on the ground or dirt getting into the glue
when you place the wheel on the ground.
Take hold of the tyre right and left of the valve with
both hands, pull it vigorously downward and work it
bit by bit into the base of the rim until you have about
20 centimetres left to go.
Starting from the top again on either side of the valve
pull the tyre down with your hands, letting them
gradually slip down to the not yet mounted section.
Keeping the tyre taut by holding your fingers against
the rim and your thumbs on the tyre, brace the wheel
against your hips. Heave the tyre with both thumbs
into the base of the rim.
When the tyre is seated in the base, it has to be cen-
tred, as it will rarely run true right away. Clamp the
wheel in the mounting stand again and spin it. If the
tread does not run exactly in the centre or if it swerves
to the side at any place, lift it up at that place, twist it
a little into true and let it go again.
When the tyre runs smoothly in the centre, take the
wheel off the mounting stand and inflate the tyre to
approximately half its nominal pressure. Lean your
hands on the ends of the axle and quick-release
skewers and roll the wheel a few metres on the
ground. As you roll the wheel, vary between pressing
it vertically downward and at a slant to either side.
If the tyre still runs true during the final check, in-
flate it to its maximum pressure and wait 8 hours at
least or even better a whole day, before setting off for
the first time. Beforehand adjust the pressure of the
newly mounted tyre according to the manufacturer's
recommendations and to your own needs.
PUNCTURE
WHEELS
99
Heaving the tyre into the rim base
Pressing the tyre with the thumbs over the rim edge
Checking the tyre trueness with the brake pads
Keep in mind that after dismounting a
tubular tyre en route it will not be attached
to the rim as firmly as before. Therefore, ride par-
ticularly carefully on the last part of your tour.
Back home, you will need to glue it properly again.
Improper mounting can lead to malfunc-
i
tion or tyre damage. It is therefore abso-
lutely necessary to follow the manufacturer's op-
erating instructions enclosed with the delivery.
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