Checking The Brake Discs; Checking The Rim Run-Out - KTM 250 EXC TPI 2019 Repair Manual

14.4

Checking the brake discs

Warning
Danger of accidents Worn-out brake discs reduce the braking effect.
–
Make sure that worn-out brake discs are replaced immediately.
14.5

Checking the rim run-out

Warning
Danger of accidents Incorrectly tensioned spokes impair the handling characteristic and result in sec-
ondary damage.
The spokes break due to being overloaded if they are too tightly tensioned. If the tension in the spokes
is too low, then lateral and radial run-out will form in the wheel. Other spokes will become looser as a
result.
–
Check spoke tension regularly, and in particular on a new vehicle.
Info
A loose spoke can unbalance the wheel and other spokes may loosen within a short period.
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 brake disc thickness at multiple
points for the dimension
Info
Wear reduces the thickness of the brake disc around
the contact surface of the brake linings.
Brake discs - wear limit (All standard EXC/XC-W models)
front
400257-10
rear
Brake discs - wear limit (All Six Days models)
front
rear
» If the brake disc thickness is less than the specified value:
–
Change the front brake disc. (
–
Change the rear brake disc. (
–
Check the front and rear brake discs for damage, cracking, and
deformation.
» If the brake disc exhibits damage, cracking, or deforma-
tion:
–
Change the front brake disc. (
–
Change the rear brake disc. (
A
.
2.5 mm (0.098 in)
3.5 mm (0.138 in)
2.5 mm (0.098 in)
3.7 mm (0.146 in)
p. 142)
p. 146)
p. 142)
p. 146)
WHEELS 14
139