When to replace sealed bearings

[michael]

I have DT Swiss Hubs on my mtb now for 10 years. Never being opened or replaced since i bought them new. They both still spin freely.

 

Stupid question - if its not broken, should i leave it or replace with new? Touch wood, never had a problem with them at all.

 

Are they easy to replace( can i do it myself) or send in?

Also, where is the best place(s) to buy the bearings? I stay in Cape Town.

 

Cheers

 

Mike

[Mojoman]

That's pretty good going! How many k's you reckon they have done?

[michael]

Hand full of Argus tours, Knysna tours, Karoo to coasts, plenty riding in Magic forests, hillcrests, conties etc, rain, wind you name it. but now im just worried about maintenance and if i should have it sorted.

[Goodbadugly]

Don't fix something that ain't broke. Is there play on the back wheel?

[kosmonooit]

You can normally 'feel' it when bearings are gone, they will run rough. But something to be said for periodic preventative maintenance as well.

[michael]

Don't fix something that ain't broke. Is there play on the back wheel?

 

No play at all, spins freely but when stationery, if i forcefully pull the wheel to or away from me, there is a clicking noise.