2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 409Get this manual
HYDRAULIC BRAKE Remove the brake pads from the caliper bodyAlways replace the Install new brake pads into the caliper body so their brake pads in pairs ends rest on the retainer properlyto ensure even disc pressure
Install the pad pin while pushing the brake pads against the pad spring and tighten itTORQUE: 18 (1.8 kgf-m, 13 Ibfft)
PAD SPRING
Install the disc cover with new bolt and tighten the boltTORQUE: 12 (1.2 kgf-m, Ibfft) Install the front wheel (page 17-11)Squeeze the front brake lever to seat the caliper pistons against the pad