2006-2009 Honda TRX250EX/TRX250X Service Manual, Page 286Get this manual

2006-2009 Honda TRX250EX/TRX250X Service Manual, Page 286

BRAKE SYSTEM brake drum
seal ring collar

BRAKE DRUM INSPECTION
Measure the brake drum I.DSERV ICE LIMIT: 141.0 mm (5.55 in )

Inspect the brake drum for scoring, cracks and out of roundness