BMW ONBOARD COMPUTER Wartungshandbuch PDF herunterladen (Seite 99)

The tips of the sprocket teeth

must remain inside the chain

links.

If the chain can be pulled back

far enough to expose the tips of

the sprocket teeth:

Consult a specialist workshop,

preferably an authorised BMW

Motorrad dealer.

Wheels

Tyre recommendation

For each size of tyre BMW

Motorrad tests certain makes,

and approves those that it

certifies as roadworthy. If BMW

Motorrad has not approved the

wheels and tyres, it cannot

assess their suitability or provide

any guarantee of road safety.

Use only wheels and tyres ap-

proved by BMW Motorrad for

your type of motorcycle.

You can obtain detailed informa-

tion from your authorised BMW

Motorrad dealer or on the Inter-

net at www.bmw-motorrad.com.

Effect of wheel size on

ABS

Wheel size is very important as a

parameter for the ABS. In partic-

ular, the diameter and the width

of a motorcycle's wheels are pro-

grammed into the control unit

and are fundamental to all cal-

culations. Any change in these

influencing variables, caused for

example by a switch to wheels

other than those installed ex-

works, can have serious effects

on the performance of the con-

trol systems.

The sensor rings are essential

for correct road-speed calcula-

tion, and they too must match

the motorcycle's control sys-

tems and consequently cannot

be changed.

If you decide that you would like

to fit non-standard wheels to

your motorcycle, it is very import-

ant to consult a specialist work-

shop beforehand, preferably an

authorised BMW Motorrad deal-

er. In some cases, the data pro-

grammed into the control units

can be changed to suit the new

wheel sizes.

Remove the front wheel

Make sure the ground is level

and firm and place the motor-

cycle on its stand.

Once the calipers have

been removed, there is

a risk of the brake pads being

8

97

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Maintenance

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