Checking Tire Air Pressure; Checking Spoke Tension - KTM 400 EXC EU Owner's Manual

WHEELS, TIRES

Checking tire air pressure

12.6
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.

Checking spoke tension

12.7
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 can cause wheel imbalance, which leads to more loose spokes in a short time.
If the spokes are too tight, they can break due to local overload.
Check the spoke tension regularly, especially on a new motorcycle.
–
Change the tire.
–
Check the tire age.
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 indi-
cate the week of manufacture and the last two digits the year of manufac-
ture.
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
Road tire pressure (All EXC models)
Front
400695-01
Rear
» If the tire pressure does not meet specifications:
–
Correct the tire air pressure.
–
Fit the dust cap.
–
Tap each spoke with a screwdriver.
Info
The sound frequency depends on the length and thickness of the spoke.
If there are different sound frequencies in spokes with the same length and
thickness, this indicates different spoke tensions.
You should hear a high note.
» If the spoke tension varies:
400694-01
–
Correct the spoke tension.
–
Check the spoke torque.
Guideline
Spoke nipple, front wheel
Spoke nipple, rear wheel
1.0 bar (15 psi)
1.0 bar (15 psi)
1.5 bar (22 psi)
2.0 bar (29 psi)
x
M4.5
M5
76
5... 6 Nm (3.7...
4.4 lbf ft)
5... 6 Nm (3.7...
4.4 lbf ft)