Honda TRX450ER Owner's Manual page 145

Brakes
With the ATV in an upright position, check the fluid level.
It should be above the LOWER level mark ( ). If the level is at or 2
below the LOWER level mark, check the brake pads for wear
(page 138 ).
Worn brake pads should be replaced. If the pads are not worn, have your
brake system inspected for leaks.
Rear Brake Fluid Level
RIGHT SIDE
(3)
(4)
(3) UPPER level mark (4) LOWER level mark
With the ATV in an upright position, check the fluid level.
It should be between the UPPER ( ) and LOWER ( ) level mark. If the 3 4
level is at or below the LOWER level mark, check the brake pads for
wear (page 138 ).
Worn brake pads should be replaced. If the pads are not worn, have your
brake system inspected for leaks.
136 Servicing Your Honda