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MAINTENANCE WORK ON CHASSIS AND ENGINE »
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Checking spoke tension
The correct spoke tension is very important for the stability of the wheels and thus for rid-
ing safety. A loose spoke causes the wheel to become unbalanced and before long other
spokes will have come loose. Check spoke tension, especially on a new motorcycle, in reg-
ular intervals. For checking, tap on each spoke with the blade of a screw driver (see illus-
tration). A clear tone must be the result. Dull tones indicate loose spokes. If necessary, have
the spokes retightened and the wheel centered by a KTM dealer.
– If you continue to drive with loose spokes, the spokes can tear and lead to an instable
handling performance. Torn spokes can damage the air hose. The loss of air can easily
cause the motorcycle to go out of control.
– Excessively tensioned spokes may rupture due to local overloading. The spokes must be
tensioned to 5 Nm ± 1 Nm.
– Models with ABS: an incorrect tire pressure will have an adverse effect on the ABS con-
trol and driving stability and will increase the stopping distance.
– New wheels have a smooth surface, which means that they must be run in to achieve
full grip. For this purpose, ride the motorcycle carefully at moderate speed during the
first 200 kilometers (125 miles) with new tires, tilting the vehicle at different angles so
that all sections are properly roughened. Tires will not display their full grip character-
istics until they are properly run in.
– For reasons of safety, it is recommended to exchange the valve insert whenever a new
tire is mounted.