Chainstay Rubbing

harringtonp

Put a new wheel on the bike yesterday and it is rubbing against the left chainstay. Wheel itself runs dead straight and no matter what way I try and fasten it with the quick release (e.g. pulling it to the opposite side as I tighten the release) it comes back to the left side and rubs with pedal pressure

Does this mean the wheel was not centered properly when built ?

Or is there likely to be something else I am missing ?

Thanks

Cee-Jay-Cee

Does it rub continually or just in one place?

If its continually then the wheel is not centred on the hub properly and you should bring it back to where you bought it. If its only in one place then it needs straightening however if its new then bring it back/return it for a replacement.

harringtonp

Continually. I was wondering it forks/stays were a little misaligned or became a little bent over time could that affect wheel position ?

Wheel is the Superstar Components Alexrims R380

07Lapierre

Is it the wheel rim or the tyre that's rubbing? (what's the tyre size?)
Has the Rear derailler hanger moved?

Cee-Jay-Cee

harringtonp wrote: »

Continually. I was wondering it forks/stays were a little misaligned or became a little bent over time could that affect wheel position ?

Wheel is the Superstar Components Alexrims R380

Do you know anyone clsoe at hand with a bike that you could try the wheel on just to see if the same thing happens on other bikes too (which would indicate a problem with the wheel)

harringtonp

Cee-Jay-Cee wrote: »

Do you know anyone clsoe at hand with a bike that you could try the wheel on just to see if the same thing happens on other bikes too (which would indicate a problem with the wheel)

Will try it on my winter bike this evening and see how it fits

harringtonp

07Lapierre wrote: »

Is it the wheel rim or the tyre that's rubbing? (what's the tyre size?)
Has the Rear derailler hanger moved?

I cannot see how the rear derailleur could affect anything but if there is something you're aware of there please let me know.

The tyre is rubbing. There is not a lot of clearance anyway (as on most modern bikes). Tyre is a Continental GP 4000s 23mm.

My turbo wheel which I use on the same bike has a heavy Continental Tour 28mm tyre. I don't go out of the saddle on the turbo but there is no rubbing I am aware of.

I think the superstar wheels are hand built, anybody know if it happens often that a builder has it pulled slightly to one side ? Presumably this can happen while it looks dead true at the brake blocks.

07Lapierre

harringtonp wrote: »

I cannot see how the rear derailleur could affect anything but if there is something you're aware of there please let me know.

.

Well it is a long shot and probably unlikely, BUT, if the hanger has moved, its possible that it would prevent the rear wheel axle slotting in fully...this would result in the wheel/tyre rubbing off the non-drive side chainstay.

http://www.downtube.com/v/vspfiles/images/Hanger_pics/Hanger_Derailleur_Removed.jpg

doozerie

If the wheel isn't dished properly, i.e. the rim is offset to one side, enough that is up against the chainstay then it should probably also be rubbing against one of your brake blocks - if not then it sounds more like the wheel is moving once clamped in place.

If the wheel sits straight and centred in the frame when you fit it first, then it almost certainly is dished properly. You could check this by taking the wheel off and putting it back on the bike the wrong way round. It'll be awkward and you may have to remove the skewer so that it doesn't get caught up in the rear mech, but it should go in. If the wheel dishing is wrong then the tyre should now be bearing against the other chainstay.

If the wheel sits into the frame okay but only moves offline when you pedal, then it sounds like the clamping pressure isn't enough to hold it in place. There are lots of possible reasons for that, including:

* the hub is designed for a frame with different spacing between the dropouts e.g. 130mm hub in a 135mm frame.
* there is a washer missing from the hub so it's not "wide enough" between the outer locknuts as a result.
* you are not tightening the quick-release sufficiently (or it's just a poor quality quick-release).
* the wheel is not sliding far enough back into the dropouts for there to be enough dropout to grip (assuming you have old style dropouts).

JBokeh

Are you a heavy powerful rider? The bike will flex a lot under a powerful rider and cause rubbing. I would also try a different skewer, I always swear by shimano QR skewers, they give a really tight clamp compared to some other ones.
If that doesn't work I would take the wheel to have to spoke tension checked, and also the bearings, could be worn or not properly seated causing some side to side play.

Are you able to rest your thumb against the chain stay and pull the wheel towards it with just your remaining fingers?

harringtonp

Thanks for responses guys, looked again yesterday evening and noticed hub was loose. 6 second video here shows it:

https://youtu.be/iV0pO_VTJlQ

I put it on the winter bike in the loose state and there was no rubbing at all with the wheel straight.

Anyway tightened it and will try it again later on the race bike to verify that this was the problem.

After getting the wheels I had loosened the 5mm tension bolt as the wheel spun down very quickly. This allowed the wheel spin longer before stopping but I must have over done it .

Very weary of these superstar wheels now, they're cheap but other wheels just work and run well for a long time without messing.

The reason I put the new wheel on was that I was running a Superstar Elite24 Icon ULTRA and when out on a club spin on Sunday a spoke just snapped (without hitting a pothole) and the wheel completely deformed. I've had other wheels before where you can pop 2 or 3 spokes and still get home but once a single spoke went there was no more riding it. So I will be testing out superstars lifetime truing guarantee.

I'm 78kg BTW so not particularly heavy. And certainly not powerful as asked by a poster.

doozerie

harringtonp wrote:

Very weary of these superstar wheels now, they're cheap but other wheels just work and run well for a long time without messing.

The reason I put the new wheel on was that I was running a Superstar Elite24 Icon ULTRA and when out on a club spin on Sunday a spoke just snapped (without hitting a pothole) and the wheel completely deformed. I've had other wheels before where you can pop 2 or 3 spokes and still get home but once a single spoke went there was no more riding it. So I will be testing out superstars lifetime truing guarantee.

I'm 78kg BTW so not particularly heavy. And certainly not powerful as asked by a poster.

On the topic of a spoke snapping, that may be a sign of a badly built wheel, or a badly made hub or rim (e.g. sharp edges) or spoke, or a spoke damaged during the build, or something similar which reflects badly on Superstar. Or it could be something else entirely, such as plain bad luck, which is beyond the control of Superstar.

The fewer the spokes in the wheel the greater the impact of a single broken spoke, assuming the wheel had 24 spokes then one broken spoke would be expected to throw the wheel out of true by quite a bit. The degree of deformity you saw might have been excessive, which would certainly raise questions about the quality of the build, or it might have been within the expected range for any 24-spoke wheel.

Mind you, this other thread might give further reason to question the quality of Superstar wheel builds.