2001-2006 Honda TRX 300EX Sportrax 300EX Factory Service Manual, Page 262Get this manual
BRAKE SYSTEM BRAKE DISC INSPECTION Visuallv inSp8Cllhe brake disc for damago Of cracksMeasure Ihe brake disc thicknessSERVICE LIMITS: 3.0 REAR
mm 1012 inJ
Aeplacelhe brake disc if the smallest measurement is less than Ihe service limil
Measure the brake disc warpage
SERVICE LIMIT: 0.30 mm [0.01 inJ