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My 1st post: Which non Run-flat tyres?

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Spudlink
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My 1st post: Which non Run-flat tyres?

Post by Spudlink » Sat Jun 17, 2017 4:13 pm

I've had my 3.0si coupe for 5 years. I switched from OEM Bridgestone tyres to Michelin PilotSport 2 run-flats a while ago, and have been happy with them.
However, when I asked the garage to replace the rear tyres, they fitted the new PilotSport 3 which is replacing the 2. I REALLY do not like them. At speed they don't feel right.
So, I figure it's now time to move to non-RF tyres. I know it's been discussed many times, but can someone point me in the right direction to find out which is the best option? I'm more interested in secure high speed grip and feel then comfort.

Thanks guys.

Here's a pic of the car.

[IMG]http://i345.photobucket.com/albums/p364 ... 0ajagx.jpg[/IMG]
2008 Z4 3.0si Coupe. Manual. Owned since 2012.

paulyv
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My 1st post: Which non Run-flat tyres?

Post by paulyv » Sat Jun 17, 2017 5:38 pm

My car came without run flats and based on the history I think the previous owner really knew his stuff. He had fitted Michelin Pilot Sport 3's which I have personally found to be great, as have colleagues, but have you read much about the replacements - the Sport 4's?

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mr wilks
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My 1st post: Which non Run-flat tyres?

Post by mr wilks » Sat Jun 17, 2017 8:04 pm

Just to confirm , you are currently running PilotSport3 non runflat on rears with Pilot Sport 2 runflats on front :?
Ive run PS3 PS2 both combined & in sets & i really doubt 99% of forum users would ever know which of the 2 they were on ?
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My 1st post: Which non Run-flat tyres?

Post by Spudlink » Sat Jun 17, 2017 8:48 pm

Until now I had PS2 front and rear. Now it's PS2 front with PS3 rear. All run flats, badged 'ZP' (zero pressure) which is what Michelin called they are run flats.

At speed (let's just say well above UK national speed limit) the rear feels 'soft', or 'floaty', if that makes sense. It's enough that I don't feel safe. I checked and the pressure is the same as when I had PS2s.
2008 Z4 3.0si Coupe. Manual. Owned since 2012.

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mr wilks
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My 1st post: Which non Run-flat tyres?

Post by mr wilks » Sat Jun 17, 2017 8:59 pm

My comments RE Ps2 + Ps3 were related to non runflats , no experience of Michelin runflats of any ref so ignore my earlier reply .
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My 1st post: Which non Run-flat tyres?

Post by philbo909 » Sun Jun 18, 2017 11:30 am

Spudlink wrote: Sat Jun 17, 2017 4:13 pm I've had my 3.0si coupe for 5 years. I switched from OEM Bridgestone tyres to Michelin PilotSport 2 run-flats a while ago, and have been happy with them.
However, when I asked the garage to replace the rear tyres, they fitted the new PilotSport 3 which is replacing the 2. I REALLY do not like them. At speed they don't feel right.
So, I figure it's now time to move to non-RF tyres. I know it's been discussed many times, but can someone point me in the right direction to find out which is the best option? I'm more interested in secure high speed grip and feel then comfort.

Thanks guys.

Here's a pic of the car.

[IMG]http://i345.photobucket.com/albums/p364 ... 0ajagx.jpg[/IMG]
I stick to Goodyear eagle F1 A3, good alloy protection, great in the wet, quiet, great grip and not Michelin money.
http://www.tyrereviews.co.uk/Article/20 ... e-Test.htm
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My 1st post: Which non Run-flat tyres?

Post by Spudlink » Sun Jun 18, 2017 2:50 pm

I'm thinking of getting a set of Pilot Sport 4, but they don't do exactly the same profile for the rear. 255/40 rather than 255/35.
2008 Z4 3.0si Coupe. Manual. Owned since 2012.

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My 1st post: Which non Run-flat tyres?

Post by mr wilks » Sun Jun 18, 2017 3:15 pm

Spudlink wrote: Sun Jun 18, 2017 2:50 pm I'm thinking of getting a set of Pilot Sport 4, but they don't do exactly the same profile for the rear. 255/40 rather than 255/35.
Go for 245 40 rear , with the MV2s you have 8.5j rim so perfect fitment , more wheel protection & ups the comfort too :)
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My 1st post: Which non Run-flat tyres?

Post by earthdweller » Tue Jun 20, 2017 12:02 pm

mr wilks wrote: Sun Jun 18, 2017 3:15 pm
Spudlink wrote: Sun Jun 18, 2017 2:50 pm I'm thinking of getting a set of Pilot Sport 4, but they don't do exactly the same profile for the rear. 255/40 rather than 255/35.
Go for 245 40 rear , with the MV2s you have 8.5j rim so perfect fitment , more wheel protection & ups the comfort too :)
I have the MV2s as well

Does the change affect the rolling circumference or does it stay the same ?

Must admit I'd be tempted with the added comfort

Esp if they work out cheaper !
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My 1st post: Which non Run-flat tyres?

Post by MACK » Tue Jun 20, 2017 12:35 pm

Spudlink wrote: Sat Jun 17, 2017 4:13 pm I've had my 3.0si coupe for 5 years. I switched from OEM Bridgestone tyres to Michelin PilotSport 2 run-flats a while ago, and have been happy with them.
However, when I asked the garage to replace the rear tyres, they fitted the new PilotSport 3 which is replacing the 2. I REALLY do not like them. At speed they don't feel right.
So, I figure it's now time to move to non-RF tyres. I know it's been discussed many times, but can someone point me in the right direction to find out which is the best option? I'm more interested in secure high speed grip and feel then comfort.

Thanks guys.

Here's a pic of the car.

[IMG]http://i345.photobucket.com/albums/p364 ... 0ajagx.jpg[/IMG]
I know it sounds simple but have you checked the tyre pressure?
or even tried running with M tyre pressures as M models dont use runflats and run F30 R32. A few of us with non runflats also run the M spec tyre pressures and quite like it, although other forumites dont approve of this. Its been argued on here the suspension is tuned to suit runflats etc. But that said no one has ever provided an answer to this question. On other models BMW offers a runflat delete option from the factory, however they don't change the suspension shocks/springs (all parts remain the same) if you opt for non runflat tyres, so the "the suspension is tuned for non runflats" really seems a mute point to me and doesn't stack up.
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Spudlink
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My 1st post: Which non Run-flat tyres?

Post by Spudlink » Tue Jun 20, 2017 12:54 pm

I checked the tyre pressure a couple of times because I thought there must be something wrong. I could probably have checked that the wheels were properly balanced.
Anyway, a set of PilotSport 4 are on order to be fitted Saturday. It turns out they do the exact same sizes and profiles as my current tyres, even though I couldn't find them on the Michelin website.
2008 Z4 3.0si Coupe. Manual. Owned since 2012.

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My 1st post: Which non Run-flat tyres?

Post by ferry » Fri Jun 23, 2017 5:24 pm

Spudlink wrote: Sun Jun 18, 2017 2:50 pm I'm thinking of getting a set of Pilot Sport 4, but they don't do exactly the same profile for the rear. 255/40 rather than 255/35.
They do 255/35 18. They're listed on blackcircles.com and I know someone who has bought them recently.

ETA. Should have read the whole thread, you've found some now.

Interested to know how you get on with them.

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