2003 Polaris ATV Trail Boss 330 Factory Service Manual, Page 163Get this manual
SPECIFICATIONS
Front Brake Caliper Item
Brake Pad Thickness Brake Disc Thickness Brake Disc Thickness Variance Between Measurements Brake Disc Runout
Standard
.298 .00737.56 .185 mm .150-.1653.810-4.191 mm -
Service Limit
.1503.81 mm .1403.556 mm .002.051 mm .020.50 mm
Rear Brake Caliper Item
Brake Pad Thickness Brake Disc Thickness Brake Disc Thickness Variance Between Measurements Brake Disc Runout