Honda CB125F 2017 Owner's Manual page 70

Brakes Adjusting the Rear Brake Pedal Freeplay
u
Push the brake arm to confirm that there
3.
is a gap between the rear brake adjusting
nut and brake arm pin.
Adjusting nut
After adjustment, confirm the freeplay of the
brake pedal.
Make sure the brake rod, brake arm, spring
and fastener are in good condition.
66
NOTICE
Do not turn the adjuster beyond its natural limits.
Brake arm
Push
Brake arm
pin
Gap