BMW On-Board Computer Wartungshandbuch PDF herunterladen (Seite 125)

If the tyre tread is worn to min-

imum:

Replace tyre or tyres, as applic-

able.

Check spokes

with cross-spoked wheels

OE

Make sure the ground is level

and firm and place the motor-

cycle on its stand.

Draw the handle of a screw-

driver or a similar instrument

across the spokes and listen

to the notes of the individual

spokes.

If the notes vary:

Have the spokes checked by a

specialist workshop, preferably

an authorised BMW Motorrad

dealer.

Wheels

Tyre recommendation

For each size of tyre

BMW Motorrad tests and

classifies as roadworthy certain

makes. BMW Motorrad cannot

assess the suitability or provide

any guarantee of road safety for

other tyres.

BMW Motorrad recommends

using only tyres tested by

BMW Motorrad.

You can obtain detailed

information from your authorised

BMW Motorrad dealer or on

the Internet at www.bmw-

motorrad.com.

Effect of wheel size on

chassis and suspension

control systems

Wheel size is very important

as a parameter for the Chassis

and suspension control sys-

tems ABS and ASC. In particu-

lar, the diameter and the width

of a vehicle'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 im-

portant to consult a specialist

workshop beforehand, prefer-

ably an authorised BMW Motor-

rad dealer. In some cases, the

data programmed into the control

8

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Maintenance

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