Tire fitment recommendation for BBS LM-R

[RE36TRO]

I'll be installing a set of LM-R's and am about to purchase a set of PS4S tires to go with them. My main question would be for the rears if either a 285,295 or even a 305/30 would be ideal. Specs are as followed:

F80 ZCP
Macht Schnell springs
20x9.5 ET23
20x11 ET40

Fronts I believe 265/30 is ideal however I'd like to be sure I get the rears right as it's not exactly an easy mistake to fix.

[F80Speed77]

I'd go 265/30/20F 295/30/20R

[AlterZgo]

I second the 265/30/20 F and 295/30/20 R rec. 305/30/20 would make rear tire profile look too thick, may run into rubbing issues on 20x11 +40 rims depending on brand of tire and would have enough of a height difference btw F and R that you may get unwanted DSC interventions.

I’ve been running 265/295 30/20s PS4S for a few mos now and they feel perfect.

[RE36TRO]

Thanks all

[MR_X]

I have 265/295 PS4S on my LM-Rs. The rear looks perfect but the front has a bit of a stretched looked. Once I get to replace them, I will go with 275.

[RE36TRO]

Originally Posted by MR_X

I have 265/295 PS4S on my LM-Rs. The rear looks perfect but the front has a bit of a stretched looked. Once I get to replace them, I will go with 275.

I assume you're not lowered at all?

[MR_X]

Originally Posted by RE36TRO

I assume you're not lowered at all?

I’m lowered on Swift springs.

[RE36TRO]

Originally Posted by MR_X

I’m lowered on Swift springs.

Hmm, interesting. I've seen some use 5mm spacers or so to remedy that look. Curious if 275 would rub.

[BzsBimmer]

I’m running 265/285 with 20” MP4S on my LM-R’s but my fronts are ET 18 so they naturally stick out a bit more than your ET23’s

I was told that if I ran 285 on rears there would be a good chance of rubbing at my height on bumps.

[RE36TRO]

Originally Posted by BzsBimmer

I’m running 265/285 with 20” MP4S on my LM-R’s but my fronts are ET 18 so they naturally stick out a bit more than your ET23’s

I was told that if I ran 285 on rears there would be a good chance of rubbing at my height on bumps.

Do you mean 295's on the rear may rub?

[AlterZgo]

Originally Posted by RE36TRO

Do you mean 295's on the rear may rub?

295s on rear will not rub. I'm currently running 20x11 +37 rims with 295/30/20 PS4S and car is lowered with bilstein coilovers and have zero rubbing issues at all even with 4 people in the car and my 50 lb subwoofer box in the very back of the trunk.

So your 20x11 +40 should be fine w/ 295/30/20.

Here's a picture of how my rear tire fits. Yours will sit 3mm inward giving even more space than mine:

[RE36TRO]

Originally Posted by AlterZgo

295s on rear will not rub. I'm currently running 20x11 +37 rims with 295/30/20 PS4S and car is lowered with bilstein coilovers and have zero rubbing issues at all even with 4 people in the car and my 50 lb subwoofer box in the very back of the trunk.

So your 20x11 +40 should be fine w/ 295/30/20.

Here's a picture of how my rear tire fits. Yours will sit 3mm inward giving even more space than mine:

Awesome, thx. Btw what setup are you running up front?

[AlterZgo]

Originally Posted by RE36TRO

Awesome, thx. Btw what setup are you running up front?

20x9.5 +17 w/ 265/30/20 PS4S. No rubbing up front either even at full lock. However, it's very close. I think 275/30/20 would touch the inner liner, though it likely wouldn't cause any damage. Here's how my front looks at full lock. There's like 1/4" gap btw tire and plastic fender liner:

[RE36TRO]

Exactly where I was getting at. I guess I'll also be sticking to a 265F, maybe a 3-5mm spacer.

[RE36TRO]

Update. All mounted and installed 265/295 30. It looks like there is def more room to fill in each end possibly with a 3mm spacer in the rear and a 275/30 or 5mm spacer up front.

[prodigal77]

That looks excellent! Congrats

Originally Posted by RE36TRO

Update. All mounted and installed 265/295 30. It looks like there is def more room to fill in each end possibly with a 3mm spacer in the rear and a 275/30 or 5mm spacer up front.

[MR_X]

Where did you get your wheels from? Need to replace one of my front.

[AlterZgo]

Originally Posted by RE36TRO

Update. All mounted and installed 265/295 30. It looks like there is def more room to fill in each end possibly with a 3mm spacer in the rear and a 275/30 or 5mm spacer up front.

Looks awesome! Go with 5mm spacer up front. That will put you at 20x9.5 +18. You will have zero rubbing with that set up. If you bump up to 275/30/20, there will likely be some rubbing at full lock, particularly on an F80. Also, people who have run 275s up front indicate it negatively impacts how the steering feels.

Regardless, your set up looks great!

[RE36TRO]

Originally Posted by AlterZgo

Looks awesome! Go with 5mm spacer up front. That will put you at 20x9.5 +18. You will have zero rubbing with that set up. If you bump up to 275/30/20, there will likely be some rubbing at full lock, particularly on an F80. Also, people who have run 275s up front indicate it negatively impacts how the steering feels.

Regardless, your set up looks great!

Appreciate the complement and thanks for advice. I may try a 5mm.

[M3_Socal]

Anyone selling their BBS LM-R in socal?