1985-1986 Honda Fourtrax 125 TRX125 Shop Manual, Page 162Get this manual
FRONT WHEEL BRAKESTEERING
BRAKE DRUM INSPECTION
Remove the brake drum (page 2-8) and measure the brake drum 1.0
SERVICE LIMIT111 mm (4.4 in)
Check the rubber seal for damageReplace it, if necessary
RUBBER SEAL
BEARING INSPECTION
Turn the inner race of each bearing wi th your fingerThe bearings should turn smoothly and quietlyAlso check that the bearing outer face