450r bearings

[DEVINF450R]

How often should you replace seals/bearings in Houser a-arms, rear swingarm pivot, and in a lonestar dual row bearing carrier?

[4TraxRider]

Pull it off the ground and pull and shake everything. If they move and you can feel it it's time to replace. There's not really a set amount of time. Riding conditions and how often you grease/lube them plays a big role in how lone they last.