KTM 690 ENDURO USA 2008 Owner's Manual page 108

MAINTENANCE WORK ON CHASSIS AND ENGINE
Warning
Danger of crashing Impairment of riding behavior due to different tire tread patterns on front and rear wheels.
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The front and rear wheels must be fitted with tires with similar tread patterns to prevent loss of control over the vehicle.
Warning
Danger of accidents Uncontrollable handling characteristics due to non-approved and/or non-recommended tires/wheels.
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Only tires/wheels approved by KTM and with the corresponding speed index should be used.
Warning
Danger of accidents Reduced road grip with new tires.
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New tires have a smooth roll surface and therefore cannot provide full road grip. The entire roll surface must be roughened in
the first 200 kilometers (124.3 miles) by moderate driving at alternating angles. The full grip is not reached until the vehicle
has been run in.
Info
The type, condition and air pressure of the tires all have an important impact on the riding behavior of the motorcycle.
Worn tires have a negative effect on riding behavior, especially on wet surfaces.
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Check the front and rear tire for cuts, penetrations and other damage.
» If the tires exhibits cuts, penetrations or other damage:
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Change the tires.
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