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MAINTENANCE WORK ON CHASSIS AND ENGINE 67
9.68Tire condition checking
Info
Only mount tires approved or recommended by KTM.
Other tires could have a negative effect on riding behavior.
The type, condition and air pressure of the tires all have an important impact on the riding behavior of the motorcycle.
The front and rear wheels must be mounted with tires with similar profiles.
Worn tires have a negative effect on riding behavior, especially on wet surfaces.
400602-10
– Examine the front and rear tires for cuts, foreign bodies and other damage.
» If you find cuts, foreign bodies or other damage on a tire:
– Change the tires.
– Check the depth of the tread.
Info
Note local national regulations concerning the minimum tread depth.
Minimum tread depth ≥ 2 mm (≥ 0.08 in)
» If the tread depth is less than the minimum allowable 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
indicated 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 manufac-
ture.
KTM recommends that the tires be changed after five years at the latest,
regardless of the actual state of wear.
» If a tire is more than 5 years old:
– Change the tires.
9.69Checking tire air pressure
Info
Low tire air pressure leads to abnormal wear and overheating of the tire.
Correct tire air pressure ensures optimal riding comfort and maximum tire service life.
400695-01
– Remove the dust cap.
– Check tire air pressure when tires are cold.
Tire air pressure off road
Front 1.0 bar (15 psi)
Rear 1.0 bar (15 psi)
Road tire pressure
Front 1.5 bar (22 psi)
Rear 2.0 bar (29 psi)
» If the tire pressure does not meet specifications:
– Correct the tire air pressure.
– Fit the dust cap.