Hi,

After 1,5 years, my rear hub of my Easton EA90 Aero is getting a little 'rough'. The front is still find, but maybe it's time to service the bearings. Could you help me on this one? I all ready took the end caps of, but the bearings are still in the hub.

Thanks in advance

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I Will make the leap

Check this. It should answer all your questions

http://www.eastonbike.com/TECHNICAL/tec ... rvice.html

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Technical editor at Cykelmagasinet Denmark

My Simplon Pavo II

I know that web page. But, do i need to remove the bearings out of the hub? Can't i lube the bearings while they are still mounted? I don't have the material to disassemble and reassemble the bearings.

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I Will make the leap

Trip to your LBS then, lubing worn out cartridge bearings is a waste of time, they'll be rough again in days or weeks (depending how much you use them)

The only real way to "service" them is to pop them out and replace them.

Try cleaning and lubing the pawls inside the freehub first.

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TIME RXR

All ready done that.
There is just a tiny little roughness in 1 of the cartridge bearings of the wheal itself. So i don't think the bearings are completely worn out.

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I Will make the leap

Stockie, if you have even a tiny bit of roughness in a cartridge bearing you'll need to replace it.
It's not rough because it has no lube, it's because either the race is pitted with oxidation or the balls are rusty and lost their chrome plating.
Either way, you won't improve it by lubing alone.

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Guildford/Woking is the home of F1.
We make loads of other stuff here too.

The balls are not chrome plated, but yes, they could get rusted and rough if you ride in the wet.

ok,
I'll let my LBS check them out. If they need replacement, do you guys know what the Easton bearings cost?
And is it any better to install hybrid ceramic bearings, or is that extra money for nothing?

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I Will make the leap

Stockie, clean your bearings after you've removed the dustcaps, and read the number that's written on the seal (you may need a magnifying glass or outdoor light) it'll be something like 6000 2RS or something like that, these numbers correspond the the dimensions and seal type.
Go to VRX bearings and put the number in the bearing search box and it'll give you a selection of different bearings at different price points from full ceramics to hybrids to stainless steel to standards.
Just be sure to get the ones that are sealed on both sides....that's what the 2RS in the code stand for.
It'll be loads cheaper than sourcing them from Easton and much easier as VRX ship globally and only take a few days to europe.
Hope this helps, Rob.

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Guildford/Woking is the home of F1.
We make loads of other stuff here too.

Thanks for the advice.
If i reassamble them, should i put grease om some specific places? (axle,...) If so, what type of grease?

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I Will make the leap

Try what ever your bike shop has for repacking shimano or campy hubs.

But other have said if the bearing is already feeling rough then there is already damage internally. Had you lifted the seal and replaced the grease earilier you could have got more life out of them. That said if it is a full contact seal then the seals might be too tight to lift with a nail file etc and you'll damage them, and the bearing will leach grease out/dirt in and the bearing will soon die anyway.
I highly recommend doing this for people who have hybrid bearings and ride in harsher conditions as the seals are low friction seals and not as tight and as a result the grease suffers more.

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signature deleted by the Admin.

Good post, do what legs says.

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You can't be a real country unless you have a beer and an airline. It helps if you have some kind of a football team, or some nuclear weapons, but at the very least you need a beer.
-- Frank Zappa

Which is why you need lube to waterproof the bearings from the outset.

As has been pointed out, a replacement bearingset will be required.

Can somebody provide a link to a supplier of VRX bearings. I've done a Google search and I'm coming up with nothing.

Thanks,

Never mind. I believe the correct brand is VXB bearings. Correct me if I'm wrong.