Checking Tire Air Pressure; Checking Spoke Tension - KTM 50 SX 2012 Owner's Manual

13 WHEELS, TIRES
13.6

Checking 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.
13.7

Checking 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 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.
–
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.
–
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 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 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 5 years at the latest,
regardless of the actual state of wear.
» If a tire is more than 5 years old:
–
Change the tires.
–
Remove the protection cap.
–
Check the tire air pressure when the tires are cold.
Tire air pressure off road
Front
Rear
» If the tire pressure does not meet specifications:
–
Correct the tire pressure.
–
Mount the protection cap.
400695-01
–
Briefly strike each spoke with the blade of a screwdriver.
Info
The frequency of the tone depends on the spoke length and diameter.
If you hear different tone frequencies from spokes of the same length and
thickness, this is an indication that the spoke tension differs.
You should hear a high note.
400694-01
≥ 2 mm (≥ 0.08 in)
1.0 bar (15 psi)
1.0 bar (15 psi)
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