RAC4IT
Needs a job
Bergie
Posts: 3009
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posted January 15, 2003 02:14 PM
aftermarket wheel bearings?
Anyone have a source for good ceramic wheel bearings?
  
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blink
Novice Class
Posts: 48
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posted January 15, 2003 03:03 PM
Hi,
I have these in mine.
http://www.worldwidebearings.com/
I have the sealed ones for the street. If you get the ones without the seals it's better for drag racing.
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RAC4IT
Needs a job
Bergie
Posts: 3009
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posted January 15, 2003 04:40 PM
Thanks- I emailed them.
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zxlnt
Needs a job
Kawpuke Extraordinare
Posts: 2853
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posted January 15, 2003 04:46 PM
Oooooh, break out da wallet cause they aren't cheap..
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RAC4IT
Needs a job
Bergie
Posts: 3009
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posted January 15, 2003 05:58 PM
whatever it takes to go fast 
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Zhooligan
Moderator
Post Whore Extraordinaire!
Posts: 3829
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posted January 15, 2003 06:00 PM
How much is not cheap?
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entropy
Moderator
Posts: 8671
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posted January 15, 2003 06:03 PM
Bergie,
I bout 5 ceramic bearings a year ago, 2 front, 3 rear. All 5 are "unsealed", that is to say they are open cage, as opposed to the stockers 4 of 5 are closed with an orange rubber'plastic seal.
The front ones are difficult to get at so I greased em with regular wheel bearing grease. The rear sprocket carrier bearing and the one by the brake I lube with VERY light lube after every couple passes. The inside (L) rear bearing is greased with regular wheel bearing grease.
If I had to do it over again I would buy sealed ceramics and lube em all with regular wb grease.
WWBearing charged me $75ea = $425 for 5.
Good luck! 
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frEEk
Administrator
ummm... yeah
Posts: 9660
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posted January 15, 2003 07:20 PM
can u actually feel the difference?
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TurboBlew
Moderator
BUSY DOING THE SCHIAVO
Posts: 4590
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posted January 15, 2003 09:42 PM
Dont know if you can actually "feel" the difference, but big name racers like Tommy Micelli and Ryan Schnitz have gone 2-3/10ths faster with them.
The reason for the expense is they are "custom made". Just one of those little details to go fast.
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entropy
Moderator
Posts: 8671
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posted January 16, 2003 12:36 AM
little name racers, like "entropy", gained nothing like 2-3/10ths. I would equate the difference to be about like O-ring vs non-O-ring chains, and certainly less than running the MCR2 at 30# rather than 15#. They do make for cool demos in the pits when you are lubing/spinning the rear tire (free running), but it is not a dramatic difference when making passes.
Like TB says, they are just one of the "little" details with impact. Ext arm, button shifter/shift light, aftermarket shock, correct lowering, stepped seat all dwarf ceramic bearings for ET improvement.
Of course, ceramic bearings do eclipse the CF ash-tray in terms of 1/4 mi improvement, so its all relative, eh?
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RAC4IT
Needs a job
Bergie
Posts: 3009
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posted January 16, 2003 10:17 AM
What he said. They quoted me $375 which might be discounted. This is something I am looking into, as well as going to a lighter chain, both pretty much for ECTA/Maxton only to get that last bit of MPH out of the bike, but I will have to wait until I can get some sponsorship to purchase.
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entropy
Moderator
Posts: 8671
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posted January 16, 2003 10:46 AM
Good luck Bergie, ea mph is difficult to gain at 200, eh?
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