KYMCO K-XCT 300i Owner's Manual page 476

8. Brakes > Rear Brake Caliper
Inspect the piston bores for wear and damage. Measure the inside
diameter of the piston bore with a telescoping gauge and micrometer.
Replace the caliper as needed.
Item
Rear brake caliper bore I.D.
Assembly
Lubricate the caliper pistons, the caliper piston bores and the seals with
DOT 4 brake fluid from a tightly sealed container.
NOTE: Brake fluid is a corrosive chemical and can damage paints and
some plastics. Avoid contact with skin.
One at a time, fit the brake pads into the center gap in the
pad retainers and then move the pad into the retainer. If
needed, use the piston side pad to push the pistons in to
allow for more room.
Standard (mm)
25.40 - 25.45
9-31
K- XCT 300i