Operation Manual

Tyres
New tyres have a smooth sur-
face. This must be roughened by
riding in a restrained manner at
various heel angles until the tyres
are run in. This running in pro-
cedure is essential if the tyres are
to achieve maximum grip.
Tyres do not have their full
grip when new and there
is a risk of accidents at extreme
angles of heel.
Avoid extreme angles of heel.
Brakes
How can stopping
distance be minimised?
Each time the brakes are applied,
a load distribution shift takes
place with the load shifting for-
ward from the rear to the front
wheel. The sharper the motor-
cycle decelerates, the more load
is shifted to the front wheel. The
higher the wheel load, the more
braking force can be transmitted
without the wheel locking.
To optimise stopping distance,
apply the front brakes rapidly and
keep on increasing the force you
apply to the brake lever. This
makes the best possible use
of the dynamic increase in load
at the front wheel. Remember
to pull the clutch at the same
time. In the "panic braking situ-
ations" that are trained so fre-
quently braking force is applied
as rapidly as possible and with
the rider's full force applied to
the brake levers; under these cir-
cumstances the dynamic shift
in load distribution cannot keep
pace with the increase in de-
celeration and the tyres cannot
transmit the full braking force to
the surface of the road. ABS has
to intervene to keep the front
wheel from locking; this increases
stopping distance.
Descending mountain
passes
There is a danger of the
brakes fading if you use
only the rear brakes when des-
cending mountain passes. Under
extreme conditions, the brakes
could overheat and suffer severe
damage.
With the BMW integrated
brake system, the rear brake is
activated when the handbrake
lever is pressed. This protects
against overheating.Only use the
front brake and utilise engine
braking.
Wet and dirty brakes
Wetness and dirt on the brake
discs and the brake pads dimin-
ish braking efficiency.
Delayed braking action or poor
braking efficiency must be
reckoned with in the following
situations:
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z Riding