1
The Dunlop Motor Cycle Tyres as fitted to
all
models, are of the wire bead type
and are fitted
into
a well-bare rim. The wire bead ensures that there will be no
stretch in the tyre and in combination with the well-base rim, provides for easy
fitting and removal of the tyres and the safe use of air pressures.
TYRE PRESSURE
Tyre pressures should always be carefully maintained as an
lnsuficiently inflated tyre
is
a prevalent cause of failure of the tyre walls. The actual pressure at which the
cyres should be maintained,
is
a matter for experiment and depends on the rider's
weight and also the weight of a passenger and luggage if carried.
DUNLOP RECOMMENDED TYRE PRESSURES (SOLO)
MODEL. TYRE SIZE. INFLATION. PRESSURE.
P.S.I. Kgms/sqr.ci~.
5T, 6T
&
TllO SWINGING FORK FRONT 3.25-19 18 1.3
REAR 3.50-19 19 1.35
T.lOO SWINGING FORK
...
FRONT 3.25-19 17 1.2
REAR 3.50-19 19 1.35
TR.5 SWINGING FORK
...
FRONT 3.00-20 21
1.5
REAR 4.00-18 16 1.1
These inflation pressures are based on
a
rider's weight of 170 lb.
When additional weight
is
added, reference should be made to the Dunlop Booklet
which advises the necessary increased inflation pressure.
EXAMINATION
Espectally during the period when the roads are being tarred and gritted, the tyres
should be examined periodically and any sharp pieces of stone removed from the
treads. If they are allowed to remain, no immediate damage may be done, but they
will later work right through the cover and puncture the tube.
PUNCTURED REAR TYRE (RIGID FRAME MODELS)
In the event of a rear tyre puncture,
it
is
not necessary to remove the wheel
to
carry out the repair. As shown in Fig. 51, Page 131, with the mudguard rear section
removed a large circumference of the wheel
is
exposed, which makes
it
easy for the
rider to remove one side of the tyre from the rim.
For the other models, the wheel must
first
be removed.
REMOVING THE TYRE
Valve Cap and Core. Unscrew the valve cap and use the specially shaped end to
unscrew the valve core and defiare the tyre. Unscrew the knurled nut and with the
valve cap and core, place the parts where they
will be free from dirt and grit.
Preparation of Tyre and Levers.
It
is
advisable to lubricate the cover beads with
a little soapy water before commencing to remove the tyre. Levers should be
dipped
in
this solution before each insertion.
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