Honda CRF450R 2006 Owner's Manual page 86

Brakes
Brake Pad Wear
Brake pad wear depends on the severity of usage
and track conditions. (Generally, the pads will
wear faster on wet and dirty tracks) Inspect the
pads at each regular maintenance interval (page
21).
Front Brake Pads
Inspect the pads (1) through the front wheel to
determine the pad wear. If either pad is worn
anywhere to a thickness of 0.04 in (1 mm), both
pads must be replaced.
minimum thickness
indicator
(3)
(2)
wear indicator
grooves
(1) brake pads (3) brake disc
(2) front brake caliper
82
Servicing Your Honda
Rear Brake Pads
Inspect the pads (4) from the rear side of the
caliper to determine the pad wear. If either pad
is worn anywhere to a thickness of 0.04 in
(1 mm), both pads must be replaced.
0.04 in
(6)
(1 mm)
(1)
(4) brake pads
(5) rear brake caliper
replace
Other Inspections
(1)
0.04 in
(1 mm)
Check that the front brake lever and rear brake
pedal assemblies are positioned properly and the
securing bolts are tight.
Make sure there are no fluid leaks. Check for
deterioration or cracks in the hoses and fittings.
(5)
minimum thickness
indicator
0.04 in
(4) (1 mm)
replace
(6) brake disc