DU anti-friction ring

[Simonak3000]

Hey.
Im getting ready to rebuild my front forks because I have a leaking oil seal. I bought the oil and dust seal but upon reading the Clymer manual, I find that I would have to change the upper and lower DU anti-friction rings. Given that they are more expensive, Is it really necessary to change them? Its just that im supposed to do the job with a friend next sunday and Im not sure if the parts will come in time from the dealer.

Upper ring:51152-45400
Lower ring: 51121-45400


L.Leblanc
1982 GS650GL

[salty_monk]

Most people get away without changing those.. they don't seem to wear out very commonly

[Simonak3000]

Oh thanks, its just that I have a friend who is a mecanic that is coming to help me do the job and I didn't want to postpone the job to wait for the parts since the season is starting!

[bwringer]

What the heck is a DU ring?


Anyway, unless a lot of crap has gotten past the seals into the fork, and/or the bike has done a LOT of miles, the teflon coating on these bushings generally lasts quite a long time. I've seen them in fine shape at 80,000 - 100,000 miles.

The upper ones see more stress and wear faster.