[yoandry]

Anyone have tried these tires size on xdrive/OEM wheels? Pictures?

Front 295/35/19
Rears 305/30/20

Same OEM .04% diameter bettween them. So not issues there.
I want more meaty look and wider a$$

[forcefed]

The extra width and height might give you some rubbing issues in the front.

[M3SQRD]

Difference is 0.4%, not 0.04%

What specific tires do you plan on running because in that size range a lot the tires are for rear applications. Front tires are designed with wider valleys/groves to provide better steering control in wet conditions. Running rear spec tires on the front can increase the chance of aquaplaning but no real impact in dry conditions.

[Hit_Apex]

Originally Posted by M3SQRD

Difference is 0.4%, not 0.04%

What specific tires do you plan on running because in that size range a lot the tires are for rear applications. Front tires are designed with wider valleys/groves to provide better steering control in wet conditions. Running rear spec tires on the front can increase the chance of aquaplaning but no real impact in dry conditions.

Been doing this a very long time and have never encountered a front / rear spec. Can you provide an example? Is this limited to manufacturers specs (eg Star, MO, NO, TPC)? You either blew my mind or making stuff up. I hope it’s the former cause I like learning new things.

[Hit_Apex]

Originally Posted by yoandry

Anyone have tried these tires size on xdrive/OEM wheels? Pictures?

Front 295/35/19
Rears 305/30/20

Same OEM .04% diameter bettween them. So not issues there.
I want more meaty look and wider a$$

Lower or stock height? Either way, the fronts are problematic even with the common liner mod - you’ll need to do more at the front and at the rear section of the liner. 305/30/20 rears work if lowered but it will rub a hole in the felt liners at the inner rear when fully compressed - this happened to me on track. Not a big deal but something to be aware of as you’ll collect a ton of debris in those caverns behind the felt.

[M3SQRD]

Originally Posted by Hit_Apex

Been doing this a very long time and have never encountered a front / rear spec. Can you provide an example? Is this limited to manufacturers specs (eg Star, MO, NO, TPC)? You either blew my mind or making stuff up. I hope it’s the former cause I like learning new things.

I’m definitely not making it up. However, starting with my first s2000 in 2000 and my e46 M3 in 2003, I noticed a difference in the front and rear tire treads - rear always having narrower channels - and noticed it also on the e92 and f8x. I always wondered why and thought it was for RWD cars to have more rubber on the road. Then an active forum member (no longer active, moved to the dark side) referenced a source and a tire manufacturer discussing the difference in front and rear tire designs. They both said it was for improved steering control in heavy wet conditions. I recall asking why isn’t there an increased aquaplaning risk if the rear, which is usually wider to begin with, has narrower channels. It didn’t make sense to me either. I’ll look for the sources. I’m almost certain Michelin was the tire manufacturer.

[yoandry]

Originally Posted by M3SQRD

Difference is 0.4%, not 0.04%

What specific tires do you plan on running because in that size range a lot the tires are for rear applications. Front tires are designed with wider valleys/groves to provide better steering control in wet conditions. Running rear spec tires on the front can increase the chance of aquaplaning but no real impact in dry conditions.

Yes, whatever the OEM is.

Originally Posted by Hit_Apex

Lower or stock height? Either way, the fronts are problematic even with the common liner mod - you’ll need to do more at the front and at the rear section of the liner. 305/30/20 rears work if lowered but it will rub a hole in the felt liners at the inner rear when fully compressed - this happened to me on track. Not a big deal but something to be aware of as you’ll collect a ton of debris in those caverns behind the felt.

Lowered on H&R super sport springs and 15mm front / 13mm Rear spacers

[forcefed]

Originally Posted by yoandry

Lowered on H&R super sport springs and 15mm front / 13mm Rear spacers

Turn your front wheel so it gets as close as possible to the fender, now add 10mm in tire width and 6mm in height, highly unlikely a 295 tire will fit there with those spacers.

[yoandry]

Originally Posted by forcefed

Turn your front wheel so it gets as close as possible to the fender, now add 10mm in tire width and 6mm in height, highly unlikely a 295 tire will fit there with those spacers.

I mean, we can play with spacers no problem. I can try no spacers or whatever other size to clear the inner.

[forcefed]

Originally Posted by yoandry

I mean, we can play with spacers no problem. I can try no spacers or whatever other size to clear the inner.

Well keep us posted, you can also try a 285/35/19 and 295/30/20 as well.

[yoandry]

Originally Posted by forcefed

Well keep us posted, you can also try a 285/35/19 and 295/30/20 as well.

indeed, thats the safer one option.

[fl1by]

Originally Posted by Hit_Apex

Been doing this a very long time and have never encountered a front / rear spec. Can you provide an example? Is this limited to manufacturers specs (eg Star, MO, NO, TPC)? You either blew my mind or making stuff up. I hope it’s the former cause I like learning new things.

New to me, but it might be something new... looking forward to 285/35/19 and 295/30/20 supercar3

[GregM4]

Originally Posted by yoandry

Anyone have tried these tires size on xdrive/OEM wheels? Pictures?

Front 295/35/19
Rears 305/30/20

Same OEM .04% diameter bettween them. So not issues there.
I want more meaty look and wider a$$

This guy is rubbing 325 on the rear.

https://www.bimmerpost.com/forums/sh....php?t=1924513

[yoandry]

Originally Posted by GregM4

This guy is rubbing 325 on the rear.

https://www.bimmerpost.com/forums/sh....php?t=1924513

But 305 aren't 325, are they?

[Limegrntaln]

Im sure its possible. The front rubbing will probably need some liner adjustment. Im not sure what the hard on is with getting rid of the stock PS4s to go a "little" wider.

You're going from a BMW Star tire, to a non star. The PS4s Star, has 4 tire compounds, versus the standard off the shelf PS4s only having 2. The OEM BMW Michelins, are half PS4s and half Sport Cup 2. The standard off the shelf PS4S is shown with the tan carcass, while the BMW Star is shown with the Blue carcass. The tire is a completely different inner construction with the belts reaching into each groove, allowing for a tighter cornering tire feel.

The OEM BMW Star tires only come in OEM sizes.

[yoandry]

Originally Posted by Limegrntaln

Im sure its possible. The front rubbing will probably need some liner adjustment. Im not sure what the hard on is with getting rid of the stock PS4s to go a "little" wider.

You're going from a BMW Star tire, to a non star. The PS4s Star, has 4 tire compounds, versus the standard off the shelf PS4s only having 2. The OEM BMW Michelins, are half PS4s and half Sport Cup 2. The standard off the shelf PS4S is shown with the tan carcass, while the BMW Star is shown with the Blue carcass. The tire is a completely different inner construction with the belts reaching into each groove, allowing for a tighter cornering tire feel.

The OEM BMW Star tires only come in OEM sizes.

I'm not getting rid off the stock tires now, ofcourse, is when they need to be replaced which is soon.
I second those ps4 only for bmw are way better that other ps4s.