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14
WHEELS, TIRES
14.7
Checking the 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.
14.8
Checking the spoke tension
Warning
Danger of accidents Instable handling due to incorrect spoke tension.
–
Ensure that the spoke tension is correct. (Your authorized KTM workshop will be glad to help.)
Info
A loose spoke causes wheel imbalance and rapidly leads to more loose spokes.
If the spokes are too tight, they can break due to local overload.
Check the spoke tension regularly, especially on a new motorcycle.
Info
The tire manufacture date is usually included in the tire identification num-
ber and comprises the last four digits of the DOT code. The first two digits
indicate the week of manufacture and the last two digits the year of manu-
facture.
KTM recommends that the tires be changed after 5 years at the latest,
regardless of the actual state of wear.
»
If the tire is older than five years:
–
Change the tire.
–
Remove the dust cap.
–
Check tire air pressure when tires are cold.
Tire air pressure off road
Front
Rear
Tire air pressure on road
Front
400695-01
Rear
»
If the tire pressure does not meet specifications:
–
Correct the tire air pressure.
–
Fit the dust cap.
–
Briefly strike each spoke with a screwdriver blade.
Info
The frequency of the tone is a function of the spoke length and spoke diam-
eter.
If you hear different tone frequencies from individual spokes of the same
length and thickness, this is an indication of different spoke tensions.
You should hear a high note.
400694-01
»
If the spoke tensions differ:
–
Correct the spoke tension.
–
Check the spoke tension.
Guideline
Spoke nipple, front wheel
Spoke nipple, rear wheel
1.0... 1.5 bar (15... 22 psi)
1.0... 1.5 bar (15... 22 psi)
1.5 bar (22 psi)
1.5 bar (22 psi)
x
M4.5
M5
71
5... 6 Nm (3.7...
4.4 lbf ft)
5... 6 Nm (3.7...
4.4 lbf ft)
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