KTM 690 Duke USA Owner's Manual page 105

13 WHEELS, TIRES
Info
The type, condition and air pressure of the tires all have a major impact on the riding behavior of the motorcycle.
Worn tires have a negative effect on riding behavior, especially on wet surfaces.
–
Check the front and rear tires for cuts, run-in objects and other damage.
» If the tires exhibit cuts, run-in objects or other damage:
–
Change the tires.
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Check the depth of the tread.
Info
Note local national regulations concerning the minimum tread depth.
Minimum tread depth
400602-10
» If the tread depth is less than the minimum permissible depth:
–
Change the tires.
–
Check the age of the tires.
Info
The tire's date of manufacture is usually part of the tire markings and is indi-
cated by the last four digits of the DOT marking. The first two digits refer to the
week of manufacture and last two digits refer to the year of manufacture.
KTM recommends that the tires are changed regardless of the actual wear, at
the latest after 5 years.
» If a tire is more than 5 years old:
–
Change the tires.
≥ 2 mm (≥ 0.08 in)
103