1-20 2002 Buell X1: Maintenance
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BRAKE PADS AND ROTORS 1.8
BRAKE PADS
11WARNING1WARNING
Always replace brake pads in complete sets for correct
brake operation. Never replace just one brake pad. Fail-
ure to install brake pads as a set could result in death or
serious injury.
Check brake pads for minimum thickness:
● At the 500 mile (800 km) service interval.
● At every scheduled service interval thereafter.
See
Figure 1-14. Inspect brake pads for damage or excessive
wear. Replace both pads as a set if friction material of either
pad is worn to 0.04 in. (1.0 mm) or less. If this amount of wear
occurs, wear grooves will disappear from friction material sur-
face.
● Replace front brake pads using procedure under
2.11
FRONT BRAKE CALIPER.
● Replace rear brake pads using procedure under
2.14
REAR BRAKE CALIPER
.
BRAKE ROTORS
Brake Rotor Thickness
11WARNING1WARNING
Do not allow brake fluid, bearing grease, lubricants, etc.
to contact brake rotor when servicing motorcycle or
reduced braking ability will occur, which could result in
death or serious injury.
Check brake rotors for minimum thickness:
● At the 500 mile (800 km) service interval.
● At every scheduled service interval thereafter.
1. Measure rotor thickness. Replace if minimum thickness
is less than 0.18 in. (4.5 mm).
2. Check rotor surface. Replace if warped or badly scored.
3. The brake rotor must be within the following specifica-
tions. If the brake rotor is suspected of being damaged,
inspect rotor using the following measurements:
● Lateral Movement: 0.5 mm
● Radial Movement: 0.45 mm
● Rotational Movement: 0.39 mm
Figure 1-14. Brake Pad Thickness
Figure 1-15. Front Brake Rotor
7082
Friction Material
Wear Groove
Backing Material
Front Brake Rotor
7997
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