Wobbly front wheel, whats wrong ?

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CubeCrazy

Wobbly front wheel, whats wrong ?

Postby CubeCrazy » Sat Oct 13, 2012 15:31 pm

Hey guys :)

Right heres the problem...

I bought this wheelset from Superstars Components about 3 months ago :

http://superstar.tibolts.co.uk/product_ ... cts_id=497

The bike has only had light trail use, I have recently done a 50 mile canal cycle path, I usually want to go for distance for fitness but nothing like hard XC, yet after just 3 months I have a wobble on my front hub :(

Now I aint too technical and I aint really sure what I am looking at here as am a newbie :oops: , but I have taken the wheel off and from what I can tell the axel and bearings are solid yet these outer cups or whatever there called have play in them and its making the front wheel knock.

Could it be bearings thats the problem ? and if so how come they only lasted 3 months of light trail use, and am I going to need new bearings every 3 months if this is the case ? thing is it all seems tight inside the hub where the axel is :?:

Anyway heres the video I made today:

http://www.youtube.com/watch?v=9d36wx5PMtk

I just wanna be able to cycle again but I cant stand this knock and it just doesnt feel right.

Hope someone can help.

Many thanks in advance :D

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nicklouse
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Re: Wobbly front wheel, whats wrong ?

Postby nicklouse » Sat Oct 13, 2012 16:20 pm

looks normal if they did not move the wheel would not rotate.

when the wheel is fitted what is the problem?
"Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
Parktools :?:SheldonBrown

CubeCrazy

Re: Wobbly front wheel, whats wrong ?

Postby CubeCrazy » Sat Oct 13, 2012 16:23 pm

Hi Nick.

The problem is say when you lift the bike out the car and put it on the ground, when the front wheel touches the floor it knocks and you can feel it loose all the way up through the bike.

The rear wheel has no play in it whatsoever but I can wobble the front a couple of mill either side.

It feels as if the front QR is loose even when its tight.

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nicklouse
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Re: Wobbly front wheel, whats wrong ?

Postby nicklouse » Sat Oct 13, 2012 16:25 pm

is it the wheel? or is it the fork or the headset?

the cups are lose. some that is how they work.
"Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."

Parktools :?:SheldonBrown

CubeCrazy

Re: Wobbly front wheel, whats wrong ?

Postby CubeCrazy » Sat Oct 13, 2012 16:50 pm

definitely the wheel.

Is there supposed to be any lateral movement ? if I go to a bike shop and pick up all the new bikes will I be able to move the front wheel 2mm side to side, is that normal ?

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nicklouse
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Re: Wobbly front wheel, whats wrong ?

Postby nicklouse » Sat Oct 13, 2012 16:51 pm

yes the cones are free floating they have to be.

put the axle through the wheel and things will stop some movement. but they will still slid in and out on the axle.
"Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."

Parktools :?:SheldonBrown

CubeCrazy

Re: Wobbly front wheel, whats wrong ?

Postby CubeCrazy » Sat Oct 13, 2012 16:58 pm

Oh right, so theres nothing wrong with it at all then lol. :oops: :oops:

Thanks for confirming that, man all this time I been staying in because I thought there was a problem, I just dont remember it wobbling that before so I assumed there was a problem.

Thanks Nick :D

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mrmonkfinger
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Re: Wobbly front wheel, whats wrong ?

Postby mrmonkfinger » Mon Oct 15, 2012 08:28 am

You shouldn't get any knocks when the axle is done up tight, so its possible the bearings are shot. Might be worth checking the headset - if that's loose it would knock when you bump the front wheel.


Having said that, the cups will move around when the wheel is out, what you show in the video, that's quite normal. When the wheel + fork + axle is all together and done up tight, the cups clamp onto the inside cage of the bearings and there should be no movement or play.

CubeCrazy

Re: Wobbly front wheel, whats wrong ?

Postby CubeCrazy » Mon Oct 15, 2012 08:39 am

Hey mrmonkfinger.

Well I took the bike only a 5 mile ride yesterday and its horrible, it defo shouldnt be like this, like a solid metalic clunking coming from the hub :(

Just had reply from superstars again andup to now their cust service via email has been poor but I just had a comprehensive email from Nick which is good.

They seem to suggest bearings too, which baffles me as I havent done that many light trail miles and i'm annoyed if they are shot and I am having to replace them so soon at my cost.

OK I best get educated on bearings and the like.

Thanks for the posts fellas.

CubeCrazy

Best bearings to buy and where from please ? :)

Postby CubeCrazy » Mon Oct 15, 2012 08:44 am

Hey Guys.

Right looks like I am about to delv into bearing replacement, never done it before.

So i'll start by asking is it hard :lol: :oops: do I need any specific tools, brass drift etc and where could I buy all the tools ? would really help if someone could list them so I can shop for them online.

Also I am unfamiliar with the procedure, so if anyone knows of a link that helped them out I'd be very grateful.

Bearing wise apparently I need: 6804 2RS x 2 ... that means nothing to me, but can someone tell me where to buy these bearings and is there a specific one I should be looking for? do I go standard or do they even offer a ceramic and are there any benefits to these ?

I am off road now until I can get this sorted :cry:

Many thanks in advance fellas :D

Matt 8)

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nicklouse
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Re: Wobbly front wheel, whats wrong ?

Postby nicklouse » Mon Oct 15, 2012 08:56 am

again go back to basics. check the headset.

post up a video of what the wheels is doing. IE wheel in fork and make it do what it is doing to cause you your issues.

but check your headset.
"Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."

Parktools :?:SheldonBrown

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cooldad
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Re: Best bearings to buy and where from please ? :)

Postby cooldad » Mon Oct 15, 2012 09:08 am

An online bearing shop - stick the code in.
Stick to stainless steel. Ceramic are generally expensive and pointless.
What you need depends on where they are.
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nicklouse
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Re: Best bearings to buy and where from please ? :)

Postby nicklouse » Mon Oct 15, 2012 09:10 am

CubeCrazy wrote:Hey Guys.

Right looks like I am about to delv into bearing replacement, never done it before.

So i'll start by asking is it hard :lol: :oops: do I need any specific tools, brass drift etc and where could I buy all the tools ? would really help if someone could list them so I can shop for them online.

Also I am unfamiliar with the procedure, so if anyone knows of a link that helped them out I'd be very grateful.

Bearing wise apparently I need: 6804 2RS x 2 ... that means nothing to me, but can someone tell me where to buy these bearings and is there a specific one I should be looking for? do I go standard or do they even offer a ceramic and are there any benefits to these ?

I am off road now until I can get this sorted :cry:

Many thanks in advance fellas :D

Matt 8)



FFS check your headset first.

I will be very very supprised if your bearings have gone in your hubs.
"Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."

Parktools :?:SheldonBrown

CubeCrazy

Re: Wobbly front wheel, whats wrong ?

Postby CubeCrazy » Mon Oct 15, 2012 09:14 am

Video link above or here again :

http://www.youtube.com/watch?v=9d36wx5PMtk

I'll have a good look at the headset too :)

CubeCrazy

Re: Best bearings to buy and where from please ? :)

Postby CubeCrazy » Mon Oct 15, 2012 09:33 am

OK thanks guys :)

Found plenty online with the code and will stick to stainless.

Hubs are switch evo if that means anything ? i've took bearings outta me R1's wheels before so am sure its same process just carefully done.

OK headset, is there a correct way to check this ? I'll get bike in living room now and see if I can spot anything and report back :mrgreen:

CubeCrazy

Re: Best bearings to buy and where from please ? :)

Postby CubeCrazy » Mon Oct 15, 2012 09:35 am

Ohhhhhhhhh front brake on, push bike back and forth, knock knock knock goes what I think is the headset, ok heart racing calm down calm down lol be nice if thats all it is :)

I'll undo it all and torque it up and see if that solves things :D

CubeCrazy

Re: Best bearings to buy and where from please ? :)

Postby CubeCrazy » Mon Oct 15, 2012 09:46 am

Nope false alarm :( it was just the play from the hub I was feeling, headset and forks are fine, no play whatsoever.

Undone the stem and the top steerer bolt, re torqued it up nice and tight, even with bike upside down just pulling at the wheel a bit its the same rattle, has to be bearings.

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cooldad
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Re: Best bearings to buy and where from please ? :)

Postby cooldad » Mon Oct 15, 2012 09:50 am

Why would you undo the steerer bolt? Sure you're doing it right? Steerer bolt then stem bolts.
I don't do smileys.

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CubeCrazy

Re: Best bearings to buy and where from please ? :)

Postby CubeCrazy » Mon Oct 15, 2012 09:56 am

I undid the stem bolts first then loosened off the steerer bolt, then I torqued it back up to 9 nm as its a carbon steer and then 5nm for the stem bolts.

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Re: Best bearings to buy and where from please ? :)

Postby Neal_ » Mon Oct 15, 2012 09:58 am

I replaced all the bearings in my SSC Switch Evo hubs recently and it's a piece of pish.

The rear is easy but for the front pull the end cap adapters off which will leave the bearings and the inner half of the end caps still in place. Using a drift/screwdriver/socket extension etc and hammer knock out a bearing and end cap still in the hub by pushing the spacer between the bearings down to compress the o-ring so you can get the drift on the edge of the bearing then do the same for the other bearing. It's best to press the bearings in place but I used an old bearing on top of the new bearing and carefully knocked it in with a hammer, even if you do use a press make sure you push on the outer race of the bearing as applying too much force to the inner race will damage them. Make sure all the spacers and end caps go in with the o-rings seated correctly which can be a bit tricky if the o-rings have magically grown like mine had.

Links below to bearing list and service guide if you want them but not hugely useful to be honest.

http://db.tt/D3vUOJEb

http://db.tt/2vZUIP8s

The best bearings are the Japanese brands (SKF, FAG, EZO) and I got mine on ebay from Katec/kaesae, just search "switch prorider bearings" and you'll find them.


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