Tyre tred

Takmon

red_eye said:

Takmon said:

red_eye said:

your not getting what I’m saying.
it doesn’t matter if there 8mm 7mm 6mm there’s so many variables that contribute to tyre wear that it is pointless worrying about .00 of a mm outside of Motorsport. The hint was the link I posted of the cheapest type of gauge available not including the wear indicator.

In your first post on this thread you said "New tyres are 8mm" then in your next post you said "There 8mm for all season, 9 for some winters and up to 10 for off road"

So considering that different tyre manufacturers have different tread depths when new (like michelin have some tyres that start at 7mm) then you are wrong when you said both those phrases as if they are standard depths. 

I never mentioned measuring tyres to the nearest micron i'm just saying all tyres manufactures have different specifications so you can't assume it will be 8mm from new like you and the OP have. 

Use the gauge I linked to you round up or down to the nearest. Arguing over a pointless .00mm when it doesn’t matter because of variables that you cannot control is not helping the op.

I'm not really sure why you can't understand what i'm saying... it's nothing to do with measuring the tread. I'll try once more to explain but if you don't get it i'm sure everyone else has by now:

In your first post on this thread you said "New tyres are 8mm"  but i said you were incorrect because some tyre manufacturers make the tyres to 7mm or other tread depths from new. This is nothing to do with measuring this is them making them 7mm on purpose so you cannot say all tyres start at a certain tread depth. 

This makes a difference to the OP because if they bought tyres that start at 6.5mm and are now 6mm then it isn't an issue. If they bought tyres that start at 8mm and they are now 6mm then it could be an issue. 

AdrianC

...and, of course, we still don't know what red_eye's generalised figure is for the vast majority of tyres sold in this country...

Unless... Red_Eye - you do know that summer tyres are not the same thing as All Season, right? If you've been a tyre fitter for decades, I'd like to hope you know that, but...

neilmcl

red_eye said:

And nearly 10 years having to fit tyres as part of my job

Please don't tell us that was with Kwik-fit, because it would explain a lot 

born_again

All this interesting stuff about tyre depths is great.
OP has made 2 posts in this tread.
Not said which brand or even how many miles they have done of the black circles.... So it's another thread that is pretty pointless disagreement between a couple of posters. Rather than a resolution of the OP's question.

sophlouwhit

Thank you for all the comments on this Thread.

Only kerb stuff it hits is the dipped kurb which we turn onto drive onto..

I think Kwik Fit add tyre tracking for the sake of it. We took car to them October with noisy suspension parts they told us there was nothing wrong and it just needed new tyres and tracking.. we did it thinking it would resolve it, it didnt. Come Feb with same level suspension noises finally a garage picked it up (f1) tho i am not sure f1 have done the service properly - the air filter was supposed to be changed as part of master service and i cant see it listed as something done, same with clutch fluid etc.. Feel very annoyed and even if i complain they will claim they did it even if its not listed as being done, we cant prove they didnt like they cant prove they did really. Overal feels like we cant trust F1 or Kwik fit for servicing or tyre stuff in the future. Only tyre place we could try that i can think of it National Tyres - service wise no idea, we used to service with Toyota till i realised they didnt do a lot, going by sevice list..

red_eye

Takmon said:

red_eye said:

Takmon said:

red_eye said:

your not getting what I’m saying.
it doesn’t matter if there 8mm 7mm 6mm there’s so many variables that contribute to tyre wear that it is pointless worrying about .00 of a mm outside of Motorsport. The hint was the link I posted of the cheapest type of gauge available not including the wear indicator.

In your first post on this thread you said "New tyres are 8mm" then in your next post you said "There 8mm for all season, 9 for some winters and up to 10 for off road"

So considering that different tyre manufacturers have different tread depths when new (like michelin have some tyres that start at 7mm) then you are wrong when you said both those phrases as if they are standard depths. 

I never mentioned measuring tyres to the nearest micron i'm just saying all tyres manufactures have different specifications so you can't assume it will be 8mm from new like you and the OP have. 

Use the gauge I linked to you round up or down to the nearest. Arguing over a pointless .00mm when it doesn’t matter because of variables that you cannot control is not helping the op.

I'm not really sure why you can't understand what i'm saying... it's nothing to do with measuring the tread. I'll try once more to explain but if you don't get it i'm sure everyone else has by now:

In your first post on this thread you said "New tyres are 8mm"  but i said you were incorrect because some tyre manufacturers make the tyres to 7mm or other tread depths from new. This is nothing to do with measuring this is them making them 7mm on purpose so you cannot say all tyres start at a certain tread depth. 

This makes a difference to the OP because if they bought tyres that start at 6.5mm and are now 6mm then it isn't an issue. If they bought tyres that start at 8mm and they are now 6mm then it could be an issue. 

But it’s not 6mm as you choose to be anal and use a resolution that is not appropriate.
If you’re going to use that resolution then at least find out what tyres the op has brought and ask that manufacturer what the real depth is on the exact serial number of the op’s tyres.

in fact you don’t know every single tread depth on every single tyre sold do you? Also due to shrinkages and tolerances when molding that figure from Michelin is not exactly true.

think of it this way gravity is different all over this planet so when calculating Newton’s do we use standard gravity or gravity where the calculation is taking place or the gravity of where figure is being used? 

So how exactly is this urine spraying contest helpful to the op?

red_eye

https://www.continental-tyres.co.uk/car/all-about-tyres/tyre-care-maintenance/tread-depth

Continental say 8-9mm

Iceweasel

red_eye said:

https://www.continental-tyres.co.uk/car/all-about-tyres/tyre-care-maintenance/tread-depth

Continental say 8-9mm

Average!

red_eye

sophlouwhit said:

Thank you for all the comments on this Thread.

Only kerb stuff it hits is the dipped kurb which we turn onto drive onto..

I think Kwik Fit add tyre tracking for the sake of it. We took car to them October with noisy suspension parts they told us there was nothing wrong and it just needed new tyres and tracking.. we did it thinking it would resolve it, it didnt. Come Feb with same level suspension noises finally a garage picked it up (f1) tho i am not sure f1 have done the service properly - the air filter was supposed to be changed as part of master service and i cant see it listed as something done, same with clutch fluid etc.. Feel very annoyed and even if i complain they will claim they did it even if its not listed as being done, we cant prove they didnt like they cant prove they did really. Overal feels like we cant trust F1 or Kwik fit for servicing or tyre stuff in the future. Only tyre place we could try that i can think of it National Tyres - service wise no idea, we used to service with Toyota till i realised they didnt do a lot, going by sevice list..

Kerb impact will not effect wear, it can depending on impact damage the tyre you’ll see a bulge on the sidewall.

suspension geometry can cause wear you can see this by excessive wear on inner or outer edge of the tread, but then so can enthusiastic driving.
wear on both inner and outer edge or in the middle is wrong tyre pressures.
the front tyres on a fwd car does a lot of work it has to deal with accelerating, breaking and cornering forces where the rears just a fraction of braking and cornering.

 If the wear is even across the tread then no one can tell you if your tyres are wearing too fast or not there are too many unknowns.

kwik fit, f1 and all other national are a profit first, customer second and fitter last business they are only interested in sales fitters are usually on low wages with bonus so it’s either work like a donkey to make decent money and go home to tired to play with the kids or cut corners although there are some good fitters. Your better off finding a good independent and see what Facebook are saying about them

red_eye

Iceweasel said:

red_eye said:

https://www.continental-tyres.co.uk/car/all-about-tyres/tyre-care-maintenance/tread-depth

Continental say 8-9mm

Average!

Yes! New trad depth for every single tyre made is different. 8mm is avarage and it’s acceptable to say a new tyre is 8mm. You can go anywhere and ask what the tread depth is not one will tell you it’s 7.xx mm they will get there £3.99 depth gauge and say 8mm.
you can pull a number of Michelin cross climate and they will all show a different thread depth along the whole tyre if your using engineering measuring devices, however if you use a depth gauge I linked it’ll be closer to 8mm.