tire help plz

[jalvarez12]

i can’t find a front tire to match my michelin pilot sport all season 4s rear 325/30r/21
i need the fronts 285/35/21 they must have got discontinued in this size does anyone have a recommendation to put on the front rears are brand new.

[jab23]

Pretty sure they never made the PSS 4S in our stock 285 35 21 size. You'll need to get a 275 35 21 which I believe people run pretty regularly when looking for alternatives to the OEM PSS.

[pachieh]

Originally Posted by jab23

Pretty sure they never made the PSS 4S in our stock 285 35 21 size. You'll need to get a 275 35 21 which I believe people run pretty regularly when looking for alternatives to the OEM PSS.

They do, I have a set of regular 4S fronts in 285/35/21 right now (not all season). The difference is they are now HL rated and “Mercedes spec” compound which is very similar to the OEM rear spec.

As for all season tires for the OP, best of luck finding them.

[DallasDave X5M]

I struggled with the same issue and ended up purchasing a full set of Michelin AS3+ tires in a slightly smaller size. There is no noticeable visual difference (size wise) and we have been using them for many months now.

My Audi has the AS4 tires and I love them (they also have the acoustic foam inserts). My goal was to equip the BMW with the same, but there doesn't seem to be an AS4 option.

[jalvarez12]

some people are saying to get the 275/35/21 pilot sport 4 all season for the fronts can anyone confirm i am going to call michelin tomorrow.

[pachieh]

Use a tire sizing calculator to ensure the height difference is less than 1.5% so your car doesn’t freak out. I had to make sure based off a calculator AND manufacturer specs for the tires that I was good using a non-OEM variant. I think it was 1.5%, can’t remember off the top of my head.

[bmwx5er]

Originally Posted by jalvarez12

some people are saying to get the 275/35/21 pilot sport 4 all season for the fronts can anyone confirm i am going to call michelin tomorrow.

https://tiresize.com/calculator/

275/35/21 and 325/30/21 differ by 0.3%, so you should be fine. This is actually more closely matched than the OEM 21” size of 285/35/21 (-0.7%).

[jab23]

Originally Posted by pachieh

They do, I have a set of regular 4S fronts in 285/35/21 right now (not all season). The difference is they are now HL rated and “Mercedes spec” compound which is very similar to the OEM rear spec.

As for all season tires for the OP, best of luck finding them.

I stand corrected! Sorry to the OP for the misinformation.