[Tengocity]

I'll have a couple of new MPS4S tyres in 255/35/19 size for sale in a few days if anyone is interested. They're coming as part of a deal I've negotiated on a set of 763 wheels, but I won't be using them. They are new, and not been fitted to a rim yet, and I'd be looking to get £260 for them.

[N44RTT]

Originally Posted by Donny_1962

Michelin offer

https://www.rewardpromotions.co.uk/m...sk?countryId=1

I bought "normal" unstarred tyres and found phoning around locally to be cheaper than Black circles/Mr Tyre/Oponeo this time. Found the cheapest quote online then got locals to match. Even better after seeing what their initial price was, surprising how many will match and go an extra couple of quid.

I paid £660.37 locally for 4 (19") and was not aware of the Michelin offer until Grant_7 mentioned it, so thanks to him another £100 discount.

That link doesn't work...neither does the actual website?

[Donny_1962]

Try this link


https://www.rewardpromotions.co.uk/mfgc.v2/Country

[chris-c]

Try either of these:

https://www.f1autocentres.co.uk/term...ing-2019-offer

https://marketing.michelin.co.uk/promo-spring-2019-uk/

[BMWILUVU]

Originally Posted by Grant_7

I'm still running around on my winter wheels & tyres, but have finally got around to ordering some new tyres for my Summer 403M's. I was originally looking at non-RFT Goodyear F1's, but the front sizes seem to be very hit and miss when it comes to availability.

So I've ordered some Michelin Pilot Sport 4S. Hoping to have them fitted next weekend and, ideally, will changeover onto them from my winters. I hear lots of good things about the PS4S tyre, so looking forward to seeing how it compares.

Oh, and I'll be putting my Bridgestone RFT's up for sale. There's still life in them, although I need to measure the tread depth to determine how much. Either way, I'll be putting them up for a cheap price.

The ride comfort and traction will get better but the ride will also be bouncier than rft.

[N44RTT]

Originally Posted by chris-c

Try either of these:

https://www.f1autocentres.co.uk/term...ing-2019-offer

https://marketing.michelin.co.uk/promo-spring-2019-uk/

Thanks! Tried the Michelin website but unfortunately bought the tyres mid-Feb and promotion only seems to apply for purchases from 1st of March. I also cannot find the retailer I bought from on their list (Autopink/Delti)

[PX3]

I will be looking at replacing my runflats in the near future with non-flats and was specifically looking at the MPS4, however it seems the standard tyre is not available in 18"

225/45R18 Y 91

255/40R18 Y 95

However, I see BlackCircle do an MPS4 XL in these sizes. Has anyone tried these, or are the XL versions not worth considering?

Thanks

[Grant_7]

Originally Posted by BMWILUVU

The ride comfort and traction will get better but the ride will also be bouncier than rft.

Eh?! Fancy explaining that one?

[BMWILUVU]

Originally Posted by Grant_7

Eh?! Fancy explaining that one?

You'll see if you do not believe me.

[Tengocity]

Originally Posted by Grant_7

Eh?! Fancy explaining that one?

Originally Posted by BMWILUVU

The ride comfort and traction will get better but the ride will also be bouncier than rft.

I think I sort of know what is being described. A few years back when I had an E89 Z4 I changed to non runflats, and did the rear tyres before the front tyres. The rear became much more comfortable and less crashy than the front, and my wife actually described it as being bouncy. After she said that I could feel what she meant, but I wouldn't have described as bouncy myself. I think it's more just what you feel when your tyre aren't crashing over everything.

[gippy]

i have a few questions related to this thread.
i too am thinking of replacing now rather than later on in the year, due to the michelin £100 offer.
With a further coupen code active from f1 autocentres, i can get 4x19" for £421.39.

https://www.hotukdeals.com/deals/235...ign=20-03-2019

however, my questions are
1. - is there anything specific required with fitting new tyres re: the tyre/temperature sensors?

or is that all in the wheel hub and theres nothing to worry about? i.e. any average professional at places like f1autocentres can fit the new tyres?

2 - from cheapest in ascending order, not sure if theres any benefit to getting the more expensive ones in the michelin range,
- standard MPS4 (£142)
- 4S
- supersport
- BMW approved (£178)

my instinct is to just get the £142 standard MPS4...any advantages to the other variants/bmw variant?
-

[gippy]

.

[Grant_7]

Originally Posted by BMWILUVU

You'll see if you do not believe me.

Brill, thanks for the explanation.

[Nick340]

Originally Posted by Watsey

The MP4S is a great tyre with excellent grip, traction, and wear rate.

The only area where I've noticed that they are not as goof as the MPSS, which they replaced, is straight line tracking - they tend to tramline a little.

Let us know what you think once you've scrubbed them in.

I've found the same, I've got them on 19's and actually had them on all winter even through the ice/minus temps we had and I got on OK with them.

They're great in the wet and loads of grip, so much more confidence in my car with the TSC off than I did in the RF Potenza's it came with.

I do also find if you put the hammer down it slides around in an odd way, it sort of squirms about.

However, where they are much better is if you put the power on early out of a corner, they have much more grip and if it does break traction it does it in a more progressive and controllable way than the Potenzas I had on, which were a bit un-nerving, especially in the wet.

Had very little wear on mine in 4 months and about 3k miles.

[Nick340]

In terms of price, I opted for the BMW* fitment because my dealership said it would void my warranty not to do so. They're more expensive.

I got them from Blackcircle, they currently have 10% off Mich tyres, with code: MICH10

I paid over £200 for mine, they're currently £196.76 fitted.

https://www.blackcircles.com/catalog...?tyre=38179066

[motoring_101]

Getting new tyres today!!

Been waiting for 9 months since purchasing the car to change what i can only assume were the cheapest tyres the previous owner could find in order to P/X the car!! A mix of Excelsior and Roadstone!

I was looking to go with Michelin MPS4's however i wanted to try a square set-up instead of 225/255 staggered or 235/265, opted for square at 245 all round with a 40 profile which aren't available so have Continental Sport Contact 6 which get similar reviews to the Michelins

Will feedback once I have had them on for a few hundred miles, should be a massive improvement to the current tyres so not necessarily an accurate reflection!

[motoring_101]

Originally Posted by Grant_7

Brill, thanks for the explanation.

Hi,

I think what they mean is that the RFT's have a much stiffer sidewall and therefore any non-runflat will be softer and offer more comfort and traction but much like a softer spring a little more bounce, RFT's are too stiff and the tyre can't handle our crappy roads!

Think of the Sidewall as a spring and it make sense

[Grant_7]

Originally Posted by motoring_101

Hi,

I think what they mean is that the RFT's have a much stiffer sidewall and therefore any non-runflat will be softer and offer more comfort and traction but much like a softer spring a little more bounce, RFT's are too stiff and the tyre can't handle our crappy roads!

Think of the Sidewall as a spring and it make sense

I appreciate your trying to help out (), however my response was one of sarcasm.

People complaining of the car bouncing due to the inherent spring rates of a tyre...really?! Ha ha, and I thought I'd heard it all.

If someone can detect the minor deflections of a tyre sidewall during vertical springing moments, which itself is part of a sprung system, well, they'd better get themselves down to Lotus or a local F1 team to start developing their chassis!

[motoring_101]

Originally Posted by Grant_7

I appreciate your trying to help out (), however my response was one of sarcasm.

People complaining of the car bouncing due to the inherent spring rates of a tyre...really?! Ha ha, and I thought I'd heard it all.

If someone can detect the minor deflections of a tyre sidewall during vertical springing moments, which itself is part of a sprung system, well, they'd better get themselves down to Lotus or a local F1 team to start developing their chassis!

No probs, and to be fair "bouncing" isn't a technical term! For some it may mean it is kangarooing down the road others may mean the tyre doesn't sit well on the road and bounces of imperfections, on a RFT I would agree with the latter!

The sidewall is important as it helps with your unsprung weight, everything before the spring is unsprung, apart from whatever suspension the tyre can offer, i can see you drive a Caterham as well, that must handle beautifully, had a go in one at Silverstone once but that was on their drift course and not around the track unfortunately!

As for detecting the "minor" differences between RFT and non-RFT, you don't need to be an F1 engineer!

[POLYPOD]

Hi Guys
I'm a newbie on this forum. Just wanted to check : do all the current 440i GC and 540i cars always have run flats?