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[Entwood]

how do they get imbalaned? i actually only need one tyre (legally) so should i get one tyre and just that wheel balanced or 1 tyre and all wheels balanced?

wear, age, curbing .. all will affect the tyre as it rotates, but wear most of all  The tyre can also "slide" around the rim over time, the forces of braking/acceleration are quite high on the sidewall, this will affect the balance as the tyre has heavy and light points which are no longer in the position when the "old" weights were applied. You can also simply lose a weight..

If you look at a reasonable tyre you will see a small yellow dot on the sidewall ... that is the "light point" and should be beside the valve,... if the tyre has been mounted correctly ... many tyre fitters don't know/understand/bother an just use massive amounts of weight to correct their incompetence 

HTH 

[Webby the Bear]

how do they get imbalaned? i actually only need one tyre (legally) so should i get one tyre and just that wheel balanced or 1 tyre and all wheels balanced?

wear, age, curbing .. all will affect the tyre as it rotates, but wear most of all  The tyre can also "slide" around the rim over time, the forces of braking/acceleration are quite high on the sidewall, thias will affect the balance as the tyre has heavy and light points which are no longer in the position when the "old" weights were applied. You can also simply lose a weight..

HTH 

cheers mate. that does help! 

so if i choose to get one new tyre i should still get them all balanced?

[Entwood]

how do they get imbalaned? i actually only need one tyre (legally) so should i get one tyre and just that wheel balanced or 1 tyre and all wheels balanced?

wear, age, curbing .. all will affect the tyre as it rotates, but wear most of all  The tyre can also "slide" around the rim over time, the forces of braking/acceleration are quite high on the sidewall, thias will affect the balance as the tyre has heavy and light points which are no longer in the position when the "old" weights were applied. You can also simply lose a weight..

HTH 

cheers mate. that does help! 

so if i choose to get one new tyre i should still get them all balanced?

Sorry I was editing my last !!   If you have a serious vibration problem you have a couple of options ... if your spare IS balanced (and it should be) replace each wheel in turn with the spare .. if you find things suddenly get better you may have the wheel with the problem in the boot !!!  if that makes sense !! 

[Webby the Bear]

how do they get imbalaned? i actually only need one tyre (legally) so should i get one tyre and just that wheel balanced or 1 tyre and all wheels balanced?

wear, age, curbing .. all will affect the tyre as it rotates, but wear most of all  The tyre can also "slide" around the rim over time, the forces of braking/acceleration are quite high on the sidewall, thias will affect the balance as the tyre has heavy and light points which are no longer in the position when the "old" weights were applied. You can also simply lose a weight..

HTH 

cheers mate. that does help! 

so if i choose to get one new tyre i should still get them all balanced?

Sorry I was editing my last !!   If you have a serious vibration problem you have a couple of options ... if your spare IS balanced (and it should be) replace each wheel in turn with the spare .. if you find things suddenly get better you may have the wheel with the problem in the boot !!!  if that makes sense !! 

it does mate thanks... so is it likely it will just be one particular wheel (not necesarily the one to be replaced) that is imbalanced?

[Entwood]

If the vibration came on suddenly, IMHO yes ... as it would be more likely to be a thrown weight, if it has built up slowly over time then it could be wear and so may involve more then one tyre ...

But I could be wrong .. only a balance will tell you the truth !!

[Webby the Bear]

If the vibration came on suddenly, IMHO yes ... as it would be more likely to be a thrown weight, if it has built up slowly over time then it could be wear and so may involve more then one tyre ...

But I could be wrong .. only a balance will tell you the truth !!

thanks entwood. thats really useful info.

im defo going to try the spare at all 4 points..... that should give me some more info! cheers mate 

[feeutfo]

I'd be examining the wheels and tyres for damage or faults of any kind to start with. Jack up and spin each wheel looking for oscillating rims or tyres, bulges, flat spots, tears or forign objects.

If its just balancing at fault, obviously leave it until the new tyres are fitted as you say. But its certainly not recommended to put total faith in the the word here. We can't see the wheels or tyres. Have a look as a starter.

[Webby the Bear]

thanks Chris. More than helpful as ever. :-) so as well as the balancing possibility it could also de damaged Tyres.

[feeutfo]

Yep, "could" be. Symptoms do sound like balance issue, but a number of things could also cause it. Better safe IMO.

[Webby the Bear]

Yep, "could" be. Symptoms do sound like balance issue, but a number of things could also cause it. Better safe IMO.

sweet cheers mate 

any idea on what i ''should'' be charged to have all 4 balanced so i can get a quote and decide whether its too pricey 

[cem_devecioglu]

That method is "static" wheel balancing and is very inaccurate ... "dynamic" balancing which is done by rotating the wheel at speed is far better as it more closely follows the wheels actual performance.

The best method of all , "dynamic on car" is very difficult (and expensive) to find these days, although back in the 60's & 70's was easily available, it takes into account any imbalance in the hub (in those days only posh folks had disc brakes), disc and even the drive shaft to an extent.

I used to have this done regularly on the rally car but would not pay for it on a general use vehicle, but I would not drop down to static ... a normal dynamic balance is only a fiver or so ... less than a gallon of fuel per wheel ..

thats the best method     and I give up for other methods long time ago.. but not cheap..

[cem_devecioglu]

how do they get imbalaned? i actually only need one tyre (legally) so should i get one tyre and just that wheel balanced or 1 tyre and all wheels balanced?

wear, age, curbing .. all will affect the tyre as it rotates, but wear most of all  The tyre can also "slide" around the rim over time, the forces of braking/acceleration are quite high on the sidewall, this will affect the balance as the tyre has heavy and light points which are no longer in the position when the "old" weights were applied. You can also simply lose a weight..

If you look at a reasonable tyre you will see a small yellow dot on the sidewall ... that is the "light point" and should be beside the valve,... if the tyre has been mounted correctly ... many tyre fitters don't know/understand/bother an just use massive amounts of weight to correct their incompetence

HTH 

 

[feeutfo]

Only system I have found to work to an acceptable level is a 5 stud balancer. As opposed to the cone balancer more commonly available.

How much? Not sure. My local guys have to re do mine for free as they keep fe@king it up first time around. It's like bloody ground hog day down there.

Ring around I guess? But tbh, get some new ones on there.

[TheBoy]

Thrown weights, wear, potholes, buckled/ovalled wheels are all things that can cause vibration at speed.

If only under braking, discs and suspension/steering components worth looking at