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Ceramic Bearings
for FS pivots
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Just gone though a set of "Enduro Max Sealed" bearings in 6 months & have done a bit of homework before replacing them with the same again.

Turns out they're a fairly common size (6903 RS) which can be found in full ceramic form.  These are twice the cost of SS ones but I was wondering:

  • Would they be suitable for use in suspension pivot points?
  • How much longer they'd last?
  • What kind of care/maintenance they need?

Anyone used them in this application before or is there a good reason not to? 

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Twice the cost as in £10 or £50?
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About £20 a side if  hybrid & £35 if full ceramic races too.
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Trevor.
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Thanks for your insightful input there DK.
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Always happy to help
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I looked into this, and decided it's just not worth it!

Ceramic bearings (particularly full ceramics) really come into their own at high RPMs (ie 1000s), which you'll never achieve on a bike, and certainly not achieve in a pivot. Part of the advantage is that the material is harder than the grit, so the spinning burnishes the race, that won't happen as the pivot bearings don't rotate enough, so save your money!

You can get some Finish Line 'Ceramic Grease' which claims to have a similar effect. I was cynical, but it's revived my very notchy headset bearings, so it may improve bearing life.
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Okay Nick, I had thought that may be the case looking at the 'suitable applications' some manufacturers put in their specs.

Will see if I can get somewhere with Yeti first as consensus from other riders is that 6 months is far too quick.

Still reckon it was wet Surrey grit that finished 'em off though.

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Well a good flush through & clean and packing them with that ceramic grease helped.  Spinning 'em for a bit using a drill & a piece of dowel helped further & they're now back to smooth operation.

Thank you Mr Evans - that stuff's great!

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Yes I was quite impressed with it too! Good idea with the drill to spin them out!

I was saying this to XCman on another thread the other day, there is no merit whatsoever in having expensive bearings in a pivot, they'll all seize solid!

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I'd tried the same with normal grease but it didn't make that much difference but the ceramic stuff seemed to have an impact in no time. I'll keep a closer eye on 'em from now on though.
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I best get some of that magic grease in stock then.
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I think your maintenance regime is a tad more fastidious than mine Mike. 

Or is it you only ride it in the dry?

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A bit of both and it also shares the riding duties with a few other bikes
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I think it's very good indeed.

Clicky


  
 

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