Operating instructions

Clean the rim base from any grease or oil using a ben-
zine, spirit or acetone-soaked rag (a). Wait until the
solvent has evaporated completely before you start
applying the tyre glue. The easiest way to apply the
glue is by clamping the wheel in a truing stand or by
mounting it on an old fork clamped in a vice.
With liquid tyre glue you need several layers to create
a well-adhesive base. Spread the tyre glue evenly and
in very thin layers over the entire rim.
With a little practice you will be able to apply the
glue straight from the tube. But you can also use a
sti brush (b). When using tyre glue in tins, you need
a brush in any case. Allow the tyre glue to dry until a
nger test will proof that it is tacky-dry. This can take
several hours. Apply another two thin layers of glue
in the same way and let them dry. Also apply a some
glue to the base tape. Rim and tyre should be stored
separately at least over night.
Before mounting the tyre also apply a coat of glue to
the base tape of the tubular tyre (c). To complete the
adhesive bed add a last layer of glue.
Let the topmost layer ash o for a short moment,
but not dry, and place the AX-Lightness and engage
wheel on the ground with the valve hole facing up-
wards. Inate the tyre until it starts to round and then
stick the valve through the valve hole and press it
rmly against the rim (d).
Make sure the sides of the tyre do not touch the
adhesive bed, since your tyre will otherwise look
smudgy right away. If you have taken care to leave
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 rim base (e) until you have about 20
centimetres left to go.
Starting from the top on either side of the valve pull
the tyre down once again, letting them gradually slip
down to the not yet mounted section (f). Keeping
the tyre taut by holding your ngers against the rim
and your thumbs on the tyre, brace the wheel against
your hips. Press the tyre with both thumbs into the
rim base (g).
Once the tyre is seated in the base, it needs to be
centred, since it will rarely run true right away. To do
so clamp the AX-Lightness and engage wheel in the
mounting stand again and spin it. If the tread does
not run accurately in the centre or if there is any later-
al swerving of the tubular, lift it in that area, twist it a
little and let it down again.
When the tyre runs smoothly in the centre, take the
wheel o the mounting stand and inate the tyre to
approximately half its nominal pressure. Lean with
your hands on the ends of the axle and quick-release
skewers and roll the wheel on the ground (h). As you
roll the wheel, vary between pressing it vertically
downward and at a slant to either side.
When the tyre runs true during the nal check, inate
it to the maximum pressure. Reduce the pressure
subsequently to about 6 bar (road racing bicycle) and
to 2.5 bar (mountain bike). Wait at least eight hours,
or better yet, a whole day, before taking it for a rst
ride. Match the tyre pressure with your wishes before
your rst ride.
G
Benzine and tyre glue should only be used
in a well-aired place, since both materials
are highly ammable. Keep them in a safe
place out of children’s reach.
52 53
Rims - Wheels
a
b
c
d h
g
f
e