Urbi wrote

Hi all

I’m Uk based

I will need to have my tyres changed within month or 2.

I’m willing to go for 255/295 setup Michelin PS4 SUV

Buying from Costco or Oponeo - all depends on price.

My only concern is - BMW approved or normal ?

I don’t get what’s the difference between these two ?

If not star rated, Can they be some different Sizes so can mess up transmission? Or they are made of different compounds ? Can’t find any precise and sensible info. Your opinion will be appreciated

Thanks !

blackops23 wrote

Urbi wrote

Hi all

I’m Uk based

I will need to have my tyres changed within month or 2.

I’m willing to go for 255/295 setup Michelin PS4 SUV

Buying from Costco or Oponeo - all depends on price.

My only concern is - BMW approved or normal ?

I don’t get what’s the difference between these two ?

If not star rated, Can they be some different Sizes so can mess up transmission? Or they are made of different compounds ? Can’t find any precise and sensible info. Your opinion will be appreciated

Thanks !

Ice9 wrote

I will be mounting Michelin 4S or AS 4, 255/40/21 and 295/35/21 on 8.5 and 9.5 OE 726i rims. Thanks to all of you who tried them, and have reported back that they fit and work.

In addition, I have done "springs and spacers" on almost every BMW I have ever had.

Although this M40i is in many ways a utility car, it certainly will never be an off-road truck, so lowering it and maybe going a little stiffer will just make it that much better as a purpose-built road car.

Ordered today from H&R a sport spring set and 2 prs of 15mm spacers+bolts.
The lowering springs go 1.4" lower in front, and .8" in rear.

https://www.hrsprings.com/application/search/results/4/1995/2022/


I will report thoroughly about how the set up works, and attach pictures. Anyone who has already done that, I would appreciate hearing from you about your experience.

Tanzanite Blue, pretty much off the truck. Goes tomorrow for PPF and Ceramic and Tint. When it gets the H&R springs, big tires and spacers, it should start looking like it should

D335NUTZ wrote

I'm glad I found this thread. I'm thinking about picking up a set of 718M for my x3 m40i, but the stock 245/40/21 275/35/21 tire options are slim. I don't want to do a summer/winter set and was looking at the VREDESTEIN QUATRAC PRO+. They have options in 255/40/21 295/35/21 and they are 3PMSF. Anyone have any experience with these? I honestly don't even know if I need 3PMSF. I daily drive in NYC and the snow is hit of miss every year, but I don't have the option to call out of work just because of snow.

Also would. I be able to run 15mm spacers all around with the 718M?

svic628 wrote

I saw mention of running pilot sport 4 suv tires on the 718m but after looking couldnt find staggered sizes to stay within 1% diameter.

Anyone ever run these and what sizes?

peeezy wrote

255/40-295/35

svic628 wrote

Dont see the 295/35 anywhere.

svic628 wrote

Dont see the 295/35 anywhere.

peeezy wrote

you can find them u just have to search better. tirerack has em too.
https://www.michelinman.com/auto/browse-tires/by-dimension/295/35/21

svic628 wrote

Yea man not there lol.

Pilot Sport 4S shows up on tire rack but not the Pilot Sport 4 SUV.

ContactPatch wrote

Try this: https://www.michelinman.com/auto/tires/michelin-pilot-sport-4-suv


Looks like a great tire.

D335NUTZ wrote

Yea that's the problem with these 718m. There's such a slim selection for tires if you aren't looking for summer tires. I'd mess around with the tire calculator and figure out some combos where the diameter difference is under 1%, and also don't forget to make sure the circumference is close to the stock number so your speedometer reads the speed right.... And oh also don't go too wide or else you won't have strut clearance...

svic628 wrote

I know.. looks like i will either do Michelin PS4S or Pirelli PZ4 in 255/45 - 285/40 or 255/40 - 285/35. Wouldnt mind a little more sidewall for a bit more comfort.

D335NUTZ wrote

Won't the bigger sidewalls change the speedometer readings?