Tyres!!

Author
Discussion

Ian_UK1

1,485 posts

151 months

Sunday 14th January 2018
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Nbgring said:
If you drive a Vantage V8 with sizes 245/40 R19 and 285/35 R19 you can rule out Michelin since they do not manufacture (front-) tyres in that size approved for sale into Europe. Sadly, since the PS4S is considered to be among the best tyres for luxury sports cars.

The best tyre in above mentioned sizes would be the Continental SportContact 6 - and that one is available in Europe.

When I looked recently Goodyear (Eagle F1 - 3), Pirelli (Corsa) and Bridgestone (S007) did not offer sports tyres in above sizes.
I certainly would not recommend older tyre designs as the Bridgestone RE50.
Has anyone used the Sport Contact 6 on a Vantage?. Various reviews seem to suggest they're a substantial improvement on previous Continentals (Sport Contact 5) but I've no idea how they compare with other brands of tyre, or if they work well/badly on the Aston.

jamiemcwhir

43 posts

80 months

Monday 15th January 2018
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Ian_UK1 said:
Mansfield said:
Michelin Pilot Super Sports are still available in the above sizes as an alternative to the ones you are suggesting.
When I was looking for tyres a few weeks ago, Michelin Customer Services originally stated, as you have above, that PSS is available in 245/40x19. I was really pleased as I'd used PSS on my last 911 and they really were superb tyres. However, when I came to try to order, I couldn't find this size anywhere - including Michelin's UK website. To clarify things, I contacted Michelin's Customer Services again and had the enquiry escalated. This was the reply:



In short - Michelin doesn't make a matched set of tyres for V8V with 245/40x19 on the front! The only Michelin option is standard PS4 (245/40x19) on the front and PS4S (285/35x19) on the rear.


Edited by Ian_UK1 on Saturday 13th January 18:04
Hi Guys.. as Michelin's Technical Engineer for the UK and a pistonhead member.. thought I'd contribute.. Yes, it's unfortunate we don't have a full matching set as clearly, it would be ideal to have that option

What I wanted to add however, is that the PS4 and PS4S are direct descendants of the Pilot Super Sport. The PS4 holds no relation to the older PS3
Both PS4S and PS4 have technology directly lifted and improved from the Pilot Super Sport. I don't see any reason why the combination wouldn't work.

If anyone wants to PM me or get in touch I'm happy to assist..

Thanks for the positive feedback on the products guys, It's nice to know the products are liked by people out there.. we like them wink

TR-Spider

206 posts

35 months

Monday 15th January 2018
quotequote all
jamiemcwhir said:
Hi Guys.. as Michelin's Technical Engineer for the UK and a pistonhead member.. thought I'd contribute.. Yes, it's unfortunate we don't have a full matching set as clearly, it would be ideal to have that option

What I wanted to add however, is that the PS4 and PS4S are direct descendants of the Pilot Super Sport. The PS4 holds no relation to the older PS3
Both PS4S and PS4 have technology directly lifted and improved from the Pilot Super Sport. I don't see any reason why the combination wouldn't work.

If anyone wants to PM me or get in touch I'm happy to assist..

Thanks for the positive feedback on the products guys, It's nice to know the products are liked by people out there.. we like them wink
Thanks for your offer...I was keen to find the difference between PS4 and PS4S recently, but could not really get to the bottom of it.
https://www.pistonheads.com/gassing/topic.asp?h=0&...

As I am in Switzerland I have some degree of freedom for the tiresize, so the choice could be
Pilot Sport 4 in 245/40 R19 front and 275/35 R19 rear (wider front, 8mm larger diameter) or
Pilot Sport 4S in 235/40 R19 front and 275/35 R19 rear (stock sizes)
Focus is fast road (no track).
What would be your recommendation?

Thomas


Edited by TR-Spider on Monday 15th January 19:32

Ian_UK1

1,485 posts

151 months

Monday 15th January 2018
quotequote all
jamiemcwhir said:
Hi Guys.. as Michelin's Technical Engineer for the UK and a pistonhead member.. thought I'd contribute.. Yes, it's unfortunate we don't have a full matching set as clearly, it would be ideal to have that option

What I wanted to add however, is that the PS4 and PS4S are direct descendants of the Pilot Super Sport. The PS4 holds no relation to the older PS3
Both PS4S and PS4 have technology directly lifted and improved from the Pilot Super Sport. I don't see any reason why the combination wouldn't work.

If anyone wants to PM me or get in touch I'm happy to assist..

Thanks for the positive feedback on the products guys, It's nice to know the products are liked by people out there.. we like them wink
Hi Jamie - thanks for chipping-in and for the info above!

Does Michelin UK have any plans to make the PS4S available in 245/40x19 here? It's definitely manufactured in that size as it's readily available in the USA. Screen shot from Tire Rack in the USA below:



Edited by Ian_UK1 on Monday 15th January 20:48

Nbgring

64 posts

80 months

Tuesday 16th January 2018
quotequote all
jamiemcwhir said:
Hi Guys.. as Michelin's Technical Engineer for the UK and a pistonhead member.. thought I'd contribute.. Yes, it's unfortunate we don't have a full matching set as clearly, it would be ideal to have that option

What I wanted to add however, is that the PS4 and PS4S are direct descendants of the Pilot Super Sport. The PS4 holds no relation to the older PS3
Both PS4S and PS4 have technology directly lifted and improved from the Pilot Super Sport. I don't see any reason why the combination wouldn't work.

If anyone wants to PM me or get in touch I'm happy to assist..

Thanks for the positive feedback on the products guys, It's nice to know the products are liked by people out there.. we like them wink
Hi Jamie,
maybe I am not quite understanding what you recommend here: do you recommend for use on a Vantage V8 the Michelin PS4 in size 245/40 R19 for the front combined with a PS4S 285/35 R19 for the rear? Is that a real Michelin recommendation that you combine two different tyres? From my experience / belief I would have assumed that such different tyres would cause a dangerous disbalance of the car since - depending on temperature, moisture, surface, but also driving style or trackday condition - the different tyre characteristics would mean that either the front or the rear of the car will have significantly more grip than the other end. Is this a real Michelin recommendation that you can mix these tyres on a high performance car?

Ian_UK1

1,485 posts

151 months

Tuesday 16th January 2018
quotequote all
Nbgring said:
Hi Jamie,
maybe I am not quite understanding what you recommend here: do you recommend for use on a Vantage V8 the Michelin PS4 in size 245/40 R19 for the front combined with a PS4S 285/35 R19 for the rear? Is that a real Michelin recommendation that you combine two different tyres? From my experience / belief I would have assumed that such different tyres would cause a dangerous disbalance of the car since - depending on temperature, moisture, surface, but also driving style or trackday condition - the different tyre characteristics would mean that either the front or the rear of the car will have significantly more grip than the other end. Is this a real Michelin recommendation that you can mix these tyres on a high performance car?
This was the reply I received from Mike at Bamford Rose when I asked him the same question re PS4 F / PS4S R. Makes a lot of sense:

".....The water channels are virtually the same, the available grip from cold is more than a driver will push in reality.

Logically, it’s not as if front axle and rear axle handle identically anyway, (different weight balance, driving Vs non driven wheels and rear is going through a LSD), so a slight change in compound between each axle will affect what exactly?

Also, considering the suspension on your car [Sportpack, w/custom geo] the 4S compound will work very well on the rear, will have excellent high speed tendency for a little rear end oversteer, which is exactly what the vantage needs to overcome its front end understeer. The DSC will always catch anything in background, so it’s all risk free / irrelevant worries anyway....."


Big E 118

2,278 posts

126 months

Tuesday 16th January 2018
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I'm no expert but I wouldn't think two very similar types of tyre on different axles would make enough of a difference that many of us would even notice at road driving speeds.

A sort of related question to this thread. I'm changing to PS4s's (Vantage S so PS4S's fit all around) but have come from a Porsche background where dealers won't fit non OEM tyres. Will Aston main dealers fit OEM tyres?

I have a very good local tyre fitter but I'm a bit paranoid about the "jacking scare stories" that go with Aston ownership.

Mansfield

197 posts

62 months

Tuesday 16th January 2018
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jamiemcwhir said:
Both PS4S and PS4 have technology directly lifted and improved from the Pilot Super Sport. I don't see any reason why the combination wouldn't work.
Hi Jamie, firstly its great to have you on here giving your input. Like most people on here beng petrol heads we generally give the best that the car needs, tyres beng one of the most important.

I purchased a rear set (285/35/19) of PS4S whilst they where at a good price last year waiting for the matchng fronts (245/40/19) to be released but never where.

I was at a time considering getting a set of PS4 fronts but never did as i dont normally mix different types.

Could you give us the main difference between the 2 tyres.

As i understood it the PS4S has a similar construction to the Cup 2 (belt construction and varying tread compounds) but wasnt aware the PS4 was so similar?

old phart

392 posts

67 months

Tuesday 16th January 2018
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I don't see a problem with mismatched tires as long as you don't go crazy with snow tires up front and summer in back.. Went to a few coffee cupping's a while back. They had a beautiful 'tasting wheel' with hundreds of smells/tastes listed. All my rather pedestrian taste could tell was strong, mild, weak, bitter, acidic, rich.

As to tires there are so many variables involved, temperature, road surface, vehicle weight, weather, rubber compound..... I think that whatever brand you get you have to get a feel for their limits. There's no label that says - good for 70mph on a 60yard radius curve. You just drive it and learn how far you can push them.

vpr

2,996 posts

195 months

Wednesday 17th January 2018
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Do what is the verdict here for a V12v. Matching set?

I’m confused

Or do the PS4 fr and PS4S r look very similar
Mint keen on having tyres looking different front to rear. It’ll look like I’m a tight old toad

Edited by vpr on Wednesday 17th January 17:06

vpr

2,996 posts

195 months

Wednesday 17th January 2018
quotequote all
Do what is the verdict here for a V12v. Matching set?

I’m confused

Or do the PS4 fr and PS4S r look very similar
Mint keen on having tyres looking different front to rear. It’ll look like I’m a tight old toad

Edited by vpr on Thursday 18th January 19:00

vpr

2,996 posts

195 months

Wednesday 17th January 2018
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Ok. Think I’m right in saying that the V12 has wider tyres which are both available front and rear as PS4S

255/35/19 and 295/30/19

So you could always go wider on the V8??

V8V Pete

2,022 posts

83 months

Wednesday 17th January 2018
quotequote all
vpr said:
Ok. Think I’m right in saying that the V12 has wider tyres which are both available front and rear as PS4S

255/35/19 and 295/30/19

So you could always go wider on the V8??
Which is what I said on the last thread on this topic and what I will be doing in the spring when my winters come off. Having said that I will be mounting them on V12V rims which are a bit wider but that's just because I really like the V12 wheels and have bought a set. I think the V12 sizes would go on the V8S rims OK anyway.

I will report back in the spring when I have V12 size PS4Ss on my V8S but I doubt I'll be disappointed.

Mansfield

197 posts

62 months

Wednesday 17th January 2018
quotequote all
Unfortunately you cant go to those tyre sizes on the V8 as the V12 has wider wheels in the first place.

On the 'standard' wheels the tyre size 235/40/19 and 275/35/19 are specified but one size up to 245/40/19 and 285/35/19 is possible (also standard on the S) and also states it on the door card.


V8V Pete

2,022 posts

83 months

Wednesday 17th January 2018
quotequote all
Mansfield said:
Unfortunately you cant go to those tyre sizes on the V8 as the V12 has wider wheels in the first place.
I'm not doubting you (as I don't know the absolute facts/rules) but who says you can't? There is one PH regular (J12MOC) who I'm sure has put V12 size Cup2s on V8S wheels and reported no problems. I don't think they are but are the V8S / late V8V rims any wider than the original V8V rims?

Mansfield

197 posts

62 months

Wednesday 17th January 2018
quotequote all
The fronts are both 8.5" wide but the rears on the S are 10" instead of 9.5"

Its not something id want fitting especially on the front (beng 2 sizes up) but if it works for whoever fitted them them fair play.

vpr

2,996 posts

195 months

Thursday 18th January 2018
quotequote all
Mansfield said:
The fronts are both 8.5" wide but the rears on the S are 10" instead of 9.5"

Its not something id want fitting especially on the front (beng 2 sizes up) but if it works for whoever fitted them them fair play.
1/2 inch is negligible. If you look on tyre calculators it gives recommendations on permissible tyre sizes vs wheel widths

vpr

2,996 posts

195 months

Thursday 18th January 2018
quotequote all
V8V Pete said:
vpr said:
Ok. Think I’m right in saying that the V12 has wider tyres which are both available front and rear as PS4S

255/35/19 and 295/30/19

So you could always go wider on the V8??
Which is what I said on the last thread on this topic and what I will be doing in the spring when my winters come off. Having said that I will be mounting them on V12V rims which are a bit wider but that's just because I really like the V12 wheels and have bought a set. I think the V12 sizes would go on the V8S rims OK anyway.

I will report back in the spring when I have V12 size PS4Ss on my V8S but I doubt I'll be disappointed.
Need to share prices as and when. So far I have prices from Oponeo

255 £186
295 £261

Pretty sure the 295 price can be bettered

Mansfield

197 posts

62 months

Thursday 18th January 2018
quotequote all
vpr said:
Mansfield said:
The fronts are both 8.5" wide but the rears on the S are 10" instead of 9.5"

Its not something id want fitting especially on the front (beng 2 sizes up) but if it works for whoever fitted them them fair play.
1/2 inch is negligible. If you look on tyre calculators it gives recommendations on permissible tyre sizes vs wheel widths
It might be negligible but it falls outside of the recommended tyre size for that rim as per the tyre calculators.

Heaven forbid and you have an accident with those tyres on those rims and the insurance company wriggles out of any claim because they where not the recommended tyre sizes.

Like I said fair play to anyone fitting them but it's not something I would recommend to anyone.



Edited by Mansfield on Thursday 18th January 15:36

Nbgring

64 posts

80 months

Saturday 20th January 2018
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Ian_UK1 said:
Has anyone used the Sport Contact 6 on a Vantage?. Various reviews seem to suggest they're a substantial improvement on previous Continentals (Sport Contact 5) but I've no idea how they compare with other brands of tyre, or if they work well/badly on the Aston.
I have heard from favourable comments on an Aston Martin, and the Sport Contact 6 won the comparison on a F-Type in 2016:
http://www.autobild.de/artikel/sommerreifen-test-2...
Obviously those are not the same sizes, but a decent indication.