Disc Inspection; Front Brake Disc - Gilera 2008 MSS Nexus User Manual

Braking system
Brake disc screws 8 ÷ 10

Disc Inspection

- Remove the rear brake calliper.
- Check the disc thickness with a micrometer
Characteristic
Standard thickness:
5 +0.2-0.1 mm
Disc thickness at wear limit
4.5 mm
- Repeat the measurement at no fewer than six points on the disc.
- Check the regular nature of the rotation of the brake disc assembly using the appropriate tool fixed
onto the brake calliper as shown in the photo.
- In order to be able to anchor the appropriate tool properly use a metal plate with M8 threaded hole
and fix it to one of the two rear brake calliper attachment points.
- Suitably fix the flange to the wheel axle with the original nut and spacer and a Æ 17 mm bearing.
N.B.
SO AS NOT TO GET A DISTORTED READING, CAUSE THE DRIVEN PULLEY SHAFT TO TURN
IN ORDER TO ROTATE THE DISC.
Specific tooling
020335Y Magnetic support for dial gauge
Characteristic
Max. deviation allowed:
0.1 mm
- If you detect incorrect values, replace the disc. If
the anomaly persists, replace the hub.

Front brake disc

BRAK SYS - 230
MSS Nexus 300 i.e. E3 ( 2008)