Honda WW150 2018 Owner's Manual page 96

Brakes Inspecting the Rear Brake Shoe Wear
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Inspecting the Rear Brake Shoe
Wear
The rear brake is equipped with a brake wear
indicator.
Brake panel
Brake arm
92
Arrow
Reference mark
When the brake is applied, an arrow attached
to the brake arm moves toward a reference
mark on the brake panel. If the arrow aligns
with the reference mark on full application of
the brake, the brake shoes must be replaced.
See your dealer for this service.
When the brake service is necessary, see your
dealer. Use only Honda Genuine Parts or its
equivalent.