New tyres

Wig

Do all new tyres have the same tread depth?

Why isn't new tread depth shown on black circles and the like?

Hammyman

No they don't and its pointless showing it because two people could have the same tyre and depending on how they drive, have completely different rates of wear.

Paradigm

Hammyman wrote: »

No they don't and its pointless showing it because two people could have the same tyre and depending on how they drive, have completely different rates of wear.

While you're right, you haven't answered the OP's question at all!

Wig

Hammyman wrote: »

No they don't and its pointless showing it because two people could have the same tyre and depending on how they drive, have completely different rates of wear.

But any given driver will obviously always drive the same as he always does. So he could prefer to go for the tyre with greater tread depth thinking it will last him longer that the one with less.

You could have said different tyres will have different rubbers and will therefore wear at different rates. But I as a consumer would stil like to know which tyres start out with greater tread depth.

http://www.honestjohn.co.uk/forum/post/index.htm?t=23144

http://www.tyres-online.co.uk/techinfo/tread_depth.asp

property.advert

They should enforce all tyres to be made of colours which were black on the outside, perhaps blue when within a few mm of legal and then fluorescent yellow or pink when illegal making it easy to spot.

jase1

All new tyres have approximately 8mm of tread, but I don't think that's set in stone.

I agree with property.advert, that's a really good idea, and if it is feasible then should be made law. Problem is I have a feeling it would make tyres a whole lot more expensive.

forgotmyname

8mm to 11mm from what i have seen. Rather pointless figure though.

You can get an 11mm soft compound tyre that grips like its been superglued to the road but wears out in 8000 miles
or an 8mm hard compound tyre that lasts 30,000 miles.

If you want deeper tread buy a 4x4 with off road tyres that can have treads in excess of 30mm. Noisy on the road though.

leosayer

All tyres have a tread wear indicator on the sidewall, but I've ever seen that published on black circles etc.

http://www.etyres.co.uk/tyres-ratings-nhtsa/tyre-wear-ratings.htm

Gene_Hunt_2

leosayer wrote: »

All tyres have a tread wear indicator on the sidewall, but I've ever seen that published on black circles etc.

http://www.etyres.co.uk/tyres-ratings-nhtsa/tyre-wear-ratings.htm

Tyres have a tread wear indicators in the tread the OP knows that but was asking about the start depth.;)

Lum

Some of the tyre sites (eg. mytyres) rate the tyres on longevity, which is the figure you actually want I imagine.

It doesn't matter so much how they achieve that lifetime, it could be an 8mm tyre that wears slowly or an 11mm tyre that wears slightly more quickly.

The faster wearing ones are usually the ones that provide better cornering and braking though, which is worth considering. Personally I go for the safer tyre rather than the long lasting ditchfinder.

hubert_cumberdale

you would probably find the wear rate on a 11mm tread depth would be a lot faster than the 8mm one untill it got to about the 8mm

the taller blocks would mean the tread would be moving around more and get scrubbed off. When i used to do track days i would get a set of brand new tires and a raceshop down the road would put them on a lathe type thing and cut the tread down to about 5mm so they didnt flex as much and walk across the road on corners