[hinckley]

Originally Posted by bmxcamel

Has anyone found the 21" Michelin pilot sport 4S in the USA yet? I don't see it on tire rack

I finally went to Michelin's UK site. They are there, but so far, not on any US site that I can find (including Michelin's). But it won't be a UK-only thing. I'm sure they're on their way here as well.

[Skotcoop]

Im still leaning toward going a size up when it comes time for new 21" tires. 255/40 and 295/35. The diameters are still within .1 inch of each other. Plus a meatier rear tire looks much better in my opinion and it better protects against curbs and the ride is better. Just costs a bit more.

[freshxdough]

Originally Posted by Skotcoop

Im still leaning toward going a size up when it comes time for new 21" tires. 255/40 and 295/35. The diameters are still within .1 inch of each other. Plus a meatier rear tire looks much better in my opinion and it better protects against curbs and the ride is better. Just costs a bit more.

This is exactly what I did. Works perfect and the tires have a little more meat on them. Doesn't look too wide for the wheels either.

[ramparts]

Originally Posted by freshxdough

This is exactly what I did. Works perfect and the tires have a little more meat on them. Doesn't look too wide for the wheels either.

I'll take some photos once they are on of the OEM sizes before and after for those that care

[comber]

Originally Posted by davidoff86

I'll take some photos once they are on of the OEM sizes before and after for those that care

Looking forward to your comments.

My G01 was asking for a change with only 22,000 km, but now as I changed the whole car, I am again with brand new f*****g Alenzas...so will have to wait as i don't want to replace new tires. Anyway, I will not feel sorry for mistreating them so that they wear out quickly.

[335is-dct]

Originally Posted by Skotcoop

Im still leaning toward going a size up when it comes time for new 21" tires. 255/40 and 295/35. The diameters are still within .1 inch of each other. Plus a meatier rear tire looks much better in my opinion and it better protects against curbs and the ride is better. Just costs a bit more.

Generally a taller, wider tire will slow a car down slightly. I wouldn’t advocate for a larger tire unless a car is having issues with traction.

[ramparts]

Rears are on! Definitely less crashy over the 474735 potholes on our road when I went out to reset the TPMs

[eX3Werks]

Looking good!

[ramparts]

fronts to follow thursday !

[freshxdough]

Originally Posted by davidoff86

Rears are on! Definitely less crashy over the 474735 potholes on our road when I went out to reset the TPMs

Definitely agree. I'll see if these last any longer than the Alenzas did.

[Minty]

Originally Posted by davidoff86

Rears are on! Definitely less crashy over the 474735 potholes on our road when I went out to reset the TPMs

Hi davidoff86,
I am watching with interest as looking to replace my 21" Bridgestone Alenza's soon. One of my bugbears is the low frequency hum / drone which can be particularly bad on poor surfaces, especially roads made from loose chipping. My car has acoustic side glass which I think removes most other noises so I focus on the humming! I have definitely got used to it though and it is probably expected with massive wheels, low profile tyres and run flats.

Can you give an early impression if road noise, especially the drone / humming has improved?

Thanks!
Minty

[ramparts]

Originally Posted by Minty

Hi davidoff86,
I am watching with interest as looking to replace my 21" Bridgestone Alenza's soon. One of my bugbears is the low frequency hum / drone which can be particularly bad on poor surfaces, especially roads made from loose chipping. My car has acoustic side glass which I think removes most other noises so I focus on the humming! I have definitely got used to it though and it is probably expected with massive wheels, low profile tyres and run flats.

Can you give an early impression if road noise, especially the drone / humming has improved?

Thanks!
Minty

Will report back ones the fronts are on. It's hard to say atm with only the rears on. But I can definitely tell they are softer:
- Less of a thump going over Starbucks speed hump at 5mph
- I've remembered they pick up small stones super easily! Don't miss removing them after a journey lol

[ramparts]

Ok, fronts fitted now ( although was asked if I'd ordered the right tyre as they "werent runflats" ).

- a lot quieter on the motorway above 65mph
- less tram lining
- less twitchy on uneven surface.

They are still new , so they do feel a little slimy
At low speed, but that's normal and will go after 150 miles

[comber]

[ramparts]

Also! Now there's less tyre noise, the bass response on my HK is better while driving as well. Obviously there's a lot of low frequency destructive interference going on

[335is-dct]

Really hope these are available stateside soon!

[JD-X4M40i]

Does anyone have any info as to what the pressures on non RFT should be.
I've moved from Bridgestone Alenza RFT on my 21's to non RFT Michelin Pilot Sport 4S
and running them at the previous pressures feels wrong.

[ramparts]

Originally Posted by JD-X4M40i

Does anyone have any info as to what the pressures on non RFT should be.
I've moved from Bridgestone Alenza RFT on my 21's to non RFT Michelin Pilot Sport 4S
and running them at the previous pressures feels wrong.

I run them at the pressures idrive say under "comfort", seem great there

[JD-X4M40i]

Just changed the tyre on iDrive to 21" summer, says 33 front and 36 rear, currently 31 front 34 rear

[mikeoz]

Any one in UK know a source for MPS4s as having issues finding any correct size including on Michelin website, Black circles etc

[JD-X4M40i]

I got rears in correct 275/35/21 size but went for 255/40/21 instead of 245/40/21 on the front as they were £100+ cheaper
Both were from Black Circles and delivered to my local fitter

[bmxcamel]

Still haven't seen these available in the USA