Gen.4 ZX-10R: Ceramic Wheel Bearings - Page 2 - Kawasaki ZX-10R.net
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post #11 of 42 Old 04-06-2015, 04:32 PM
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Sooo...

I am in the market to purchase some ceramic wheel bearings for my 2011 ZX-10R. Does anyone have any recommendations which brand I should go with, along with price? I'm also looking to see if anyone has experience with using ceramic bearings on OEM wheels. I would look into lighter wheels like BSTs, etc. But, I don't have that kind of money.

Any input is greatly appreciated!
The ones we spoke about this morning are the Worldwide bearings for reference. Great reviews on the product.

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post #12 of 42 Old 04-06-2015, 04:40 PM
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The ones we spoke about this morning are the Worldwide bearings for reference. Great reviews on the product.
Shit, you sell those too? Good to know!

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post #13 of 42 Old 04-06-2015, 04:51 PM
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Hybrids use a steel outer and inner race with ceramic balls. They offer improved fiction over normal bearings at a lot lower price point than full ceramics. Full ceramics will set you back close to $500 versus $300 something for the hybrids.
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post #14 of 42 Old 04-06-2015, 05:15 PM
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I have the world wide ceramic wheel bearings. They work great, but the bearings alone won't make a huge difference.

Everyone always hates on me when I say this but super-light wheels and bearings don't make a huge difference; At least in road racing. Now I'm not saying you won't notice them....just that I'd have everything else like suspension and geometry dialed in before I bought some couple hundred dollar bearings. I've had BST's, marchesinis and a set of OZ wheels with worldwide bearings in all of them...no failures.
You got it! I spent a fair bit of coin on transmission and wheel bearings and it did NOTHING! Bike gained no mph anywhere.

Stay away from the ceramic bearings man. Unfortunately you would be just wasting your money like I did lol.

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post #15 of 42 Old 04-06-2015, 06:01 PM
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I appreciate the input. But, they make ceramic wheel bearings specifically for motorcycles I believe.
Yes, they sure do. I wasn't saying they were only available for bicycles, just that for your motorcycle you probably won't realize much of a change, and the sealed ball bearings that come with the bike are much more robust and tolerant of contamination. But if you go for it, let us know how it works for ya!
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post #16 of 42 Old 04-07-2015, 10:06 AM Thread Starter
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You got it! I spent a fair bit of coin on transmission and wheel bearings and it did NOTHING! Bike gained no mph anywhere.

Stay away from the ceramic bearings man. Unfortunately you would be just wasting your money like I did lol.
Yikes. Not what I wanted to hear. They must work though if they have good reviews and are $400, right?

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Yes, they sure do. I wasn't saying they were only available for bicycles, just that for your motorcycle you probably won't realize much of a change, and the sealed ball bearings that come with the bike are much more robust and tolerant of contamination. But if you go for it, let us know how it works for ya!
Gotcha. Sorry, I guess I read your post wrong. lol

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I have the world wide ceramic wheel bearings. They work great, but the bearings alone won't make a huge difference.

Everyone always hates on me when I say this but super-light wheels and bearings don't make a huge difference; At least in road racing. Now I'm not saying you won't notice them....just that I'd have everything else like suspension and geometry dialed in before I bought some couple hundred dollar bearings. I've had BST's, marchesinis and a set of OZ wheels with worldwide bearings in all of them...no failures.
Definitely notated. My bike is lowered 2" in the front and 1.5" in the rear. I also have a Gen.1 Hayabusa front fender on the bike. As you can probably tell, I like to do top speed runs. lol

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The ones we spoke about this morning are the Worldwide bearings for reference. Great reviews on the product.
Thanks, Mike! I think your free shipping is what will seal the deal if I decide to go with them. I'm just having mixed thoughts now based on some of the reviews with not making much of a difference. For $400 that doesn't seem too practical.
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post #17 of 42 Old 04-07-2015, 05:51 PM
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Yikes. Not what I wanted to hear. They must work though if they have good reviews and are $400, right?
If you had a race team and were looking for that one hundredth of a second, then yes they are worth it. However for you and me, not worth the coin at all. I am dead serious they did absolutely nothing. I did some 70+ passes last season at the track and there was no improvement in mph lol. Not until I dumped in MR12 lol.
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post #18 of 42 Old 04-07-2015, 07:06 PM
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The amount of actual power that it takes to spin your wheel bearings is minuscule. Since there is not much drag there to begin with, there is not much to be gained by reducing it.

1/100 of a foot-pound of torque (estimate, probably high!) x 1000 rpm (in this range of road speed) = 0.002 horsepower ...

In a conventional (steel) ball bearing, most of the drag is from the seals and viscous drag from the grease. Let's say for argument's sake that half the drag is from the seals. If you really want that 0.001 horsepower then just buy shielded bearings from the bearing shop rather than full-contact rubber seals. BUT, life will be shortened because they are not fully sealed against water and dirt getting in, and lubricant getting out. Note: Ceramics are not tolerant of contamination and have to be sealed also. If the seals are the same then the drag will be the same ...

On my roadrace bike ... I use plain ordinary double contact sealed bearings from the bearing supply shop. Stock wheel bearings are only sealed on the outside. Using the double sealed bearings means less risk of contamination getting in when the axle is removed (e.g. for tire changes). The lower risk of trouble is worth the 0.001 horsepower in my case.


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post #19 of 42 Old 04-08-2015, 12:49 PM Thread Starter
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I appreciate all of the info. Since I am having my bearings removed for powder coating purposes, I was considering the ceramics. Is it true that I can't re-use my current OEM bearings/seals in the bike once they're taken out?
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post #20 of 42 Old 04-08-2015, 01:04 PM
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Is it true that I can't re-use my current OEM bearings/seals in the bike once they're taken out?
Yes, it's true. They are pressed into the wheel hub using the outer race. But to extract them, they have to be pulled out or beaten out using the inner race. That transfers the load through the ball bearings to the outer race and will deform the races and balls slightly. If anyone tells you they can get the bearings out and you can reuse them, they are full of shit.
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