2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 384Get this manual
REAR WHEELSUSPENSION The lock nut has Loosen the axle inner lock nut while holding the left hand threads, outer lock nut, using the special toolsTOOLS: Lock nut wrench, 56 mm Lock nut wrench, 45.5 mm 07916-HA20000or 07916-HA2010A (U.S.Aonly) 07916-1870101 or commercially available equivalent LOCK NUT WRENCH INNER LOCK NUT
The lock nut has Loosen the axle outer lock nut until the stopper ring left hand threadscan be removed, using the special tool