Front Brake Disc - APRILIA RS4 125 Service Station Manual

RS4 125
•
Check the decentralisation with a mi-
crometer by placing it on the disc (A)
and turning the wheel.
•
If the decentralisation exceeds the
serviceability limit, replace the disc.
Decentralisation of the disc: 0.2 mm

Front brake disc

Removal
•
Remove the wheel.
•
Unscrew and remove the six disc fixing screws.
•
Upon refitting, position the disc adequately so that the inscriptions are on the external side.
•
Tighten to the specified torque.
Locking torques (N*m)
Front brake disc 10 - 12
Disc Inspection
•
Check the disc thickness (A) at the
most worn points. If the disc is worn
more than the specific limit, replace it.
Measurement area (2).
•
Check that there are no cracks and
slots, if it does not comply with the
specifications, replace it.
Standard thickness of the disc: 4mm (0.15 in)
Serviceability limit: 3.50 mm (0.13 in)
Braking system
BRAK SYS - 253