1981-1984 Official Honda ATC250R Shop Manual, Page 148Get this manual

REAR WHEElBRAKEDRIVE MECHANISM
ATe 250R

REAR BRAKE LINING THICKNESS
Measure each brake Ii ning thicknessSERVICE LIMIT: 2.0 mm (0.08 in)

REAR BRAKE DRUM INSPECTION
Measure the rear brake drum I.DSERVICE LIMIT: 141.0 mm (5.55 in)

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives