2001-2006 Honda TRX 300EX Sportrax 300EX Factory Service Manual, Page 62Get this manual
MAINTENANCE
BRAKE PAD WEAR
INSPECTION
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fepllce the brake pads 85 II set to IJSIllre
even disc pressureInspect the peds visuallv during alt regular service intervals to determine the pad wearIf the weer indicator aligns with the reference point, it means the pads have bean worn to their limit and must be replll(;edFront brake p&ds replacement: refer 10 page 156 Rear brake pads replacemenlrefer to page 15-8