New…misshaped tyres

[milu]

Or so it seems
Ordered 4 new tyres. Had the fronts put on. Fine.
Shortly after had the rears put on and have vibration at speed. So I assume poor balance. However after going to my trusted local place and having all 4 balanced on a road force machine. 3 tyres are out of round to some degree.
No mention of buckled wheels ( the wheels are 3 months old and oem)
I contacted the tyre supplier who said they’ve never had new misshaped tyres so must be wheels. I could send tyres back at my expense to be returned to the manufacturer but no promises of a good outcome.

I don’t believe I have 3 buckled wheels. I have taken them off and inspected. However 3 wobbly tyres seems weird too

Anyone else ever had something similar?

[Matt_E_Mulsion]

What make and style are the tyres? Three out of four sounds unlikely to be faulty, are they having to put loads of balance weight on the rim to get them something like?

[brillomaster]

What tyres are they? Even the best manufacturers accept there will be faults occasionally.

But yes, entirely possible to get a bad batch of tyres.

[johnoz]

I had some Continentals on my sprinter several years ago that would not stay in balance they returned and I had to pay for the wear use on them in the end, shaped them for Bridgestones.

[Smint]

Put them on a tyre balancer and spin it up slowly will soon reveal whats mishapen and what isn't, you could probably tell the same by lifting the car and spinning the wheels by hand, stand something so a pointer can be within a hairs breadth of the wheel edge and then the tyre edge/tread, you'll soon prove the issue for yourself.

The former is what i'd do (tyre balancer) but get the fitter to press the tyres off the beads first then apply plenty of lube before re-seating, if some clot has fitted them without adequate lube they may not be correctly seated at the beads, and yes i've seen hopeless fitters rip beads to shreds in the past because no lube used.

[tapkaJohnD]

Ask the tyre fitter to spin the bare wheels on his machine. That will show up any wheel imbalance or distortion.
If good, ad when the tyres are fitted they are out of balance, then its the tyres.

[E-bmw]

As above, it is quite simple to find out which it is, spin them up on the balancer slowly & check closely against a fixed point of reference.

[milu]

Yep I’m sure I will have to have the tyres removed and check bare wheels. Just wondered if anyone had come across out of shape tyres. I’ve done dozens of wheel and tyre swaps over the years but never had this.
What a pain!

[Scrump]

I had similar when I had new tyres on the 911. Experienced vibration so went back to the fitters.
They tried to rebalance the wheels but said the tyres were out of round and faulty.

They had no new tyres of the same size to replace them with so ordered a new set.

I was suspicious that multiple tyres would have the same fault and also needed the car for a long journey so went to another tyre place. They put the wheels on the balancer and said the tyres were not seated properly on the rims. They reseated the tyres and then they balanced up perfectly.

[Smint]

milu said:

Yep I’m sure I will have to have the tyres removed and check bare wheels. Just wondered if anyone had come across out of shape tyres. I’ve done dozens of wheel and tyre swaps over the years but never had this.
What a pain!

Donkeys years ago when i worked in the tyre game it was generally the case that Michelins needed no or very little balancing if properly fitted, some other makes you could be messing about with lots of weights to get them to balance up, i was a stickler for good fitting and balancing, shocking to see how slap dash others could be.

I've never had well fitted tyres out of shape, had tyres which developed noticeable flat spots overnight which sometimes took several miles to round up again, F1's the worse i personally found in the cold weather, could this be what you are experiencing?
Tyres can be damaged by ham fisted fitting by machine if the beads are not adequately lubed, seen the seals completely ripped off the bead materials, the forces required for that could easily distort a tyre, hopefully that isn't the case here, but i'd get the fitter you use to check the tyre beads carefully for you.
I used to fit tyres by hand, still can if it comes to it, lubed up well they slide on easily in most cases with gentle levering, unlubed low profiles you need serious machine force to get them on.

[milu]

I might the re fitting idea. Because I’m suspicious that 3 out of 4 would be out of shape

[Matt_E_Mulsion]

milu said:

I might the re fitting idea. Because I’m suspicious that 3 out of 4 would be out of shape

Are you going to reveal what tyres they are?

[E-bmw]

milu said:

Yep I’m sure I will have to have the tyres removed and check bare wheels.

No you won't just get them spun up as many have suggested & with them spinning, you can check both.

[milu]

They’ve already been spun whilst built. You could see the movement in the tyre.
The tyres are Zeta Avenzis. 275/30 21.
Decent mid range tyre. Even the garage said they were surprised with the issues even though they didn’t supply them. It would have been easy to just bemoan my choice.
Anyway I’ve had Landsail right through to Michelin over the years but never had these issues

[E-bmw]

milu said:

They’ve already been spun whilst built. You could see the movement in the tyre.

And as has been said before by me & others you also need to check the wheel, if the wheel is out the tyre will also look out, get both checked.

The tyre does not need removing, just check the rim when it is spinning.

[milu]

I think the machine checks for rim run out with the laser line that is shot across the wheel. I’m not 100% but think so. I’ll check this coming week

[dhutch]

You can certainly see an out of true rim on a tyre balance machine with the tyre on, as well as spot something might be amiss if it needs two long strips of weights in a clump, perhaps with another strip diagonally opposite.

Never had it happen to me, but from the comments above getting them reseated with some more lube sounds a good call.

[barryrs]

milu said:

They’ve already been spun whilst built. You could see the movement in the tyre.
The tyres are Zeta Avenzis. 275/30 21.
Decent mid range tyre. Even the garage said they were surprised with the issues even though they didn’t supply them. It would have been easy to just bemoan my choice.
Anyway I’ve had Landsail right through to Michelin over the years but never had these issues

Isn’t this just another Chinese budget brand?

[milu]

barryrs said:

milu said:

They’ve already been spun whilst built. You could see the movement in the tyre.
The tyres are Zeta Avenzis. 275/30 21.
Decent mid range tyre. Even the garage said they were surprised with the issues even though they didn’t supply them. It would have been easy to just bemoan my choice.
Anyway I’ve had Landsail right through to Michelin over the years but never had these issues

Isn’t this just another Chinese budget brand?

Dunno. But still doesn’t mean they can be square
Incidentally they feel just fine in the current wet winter weather

[milu]

Ok
So everything checked. Wheels are perfect. Tyres are not
Seller wants me to return them at my expense with no guarantee of the outcome of their /manufacture inspection.
Doesn’t seem like an option to me.
Do I just put the car on bricks?