BBS 19*10 ET25 RG-R square setup F80 M3?

Robmbush · 06-20-2022, 10:21 AM

Hi Guys, Wondering if the BBS RG-R will work in a 19*10 ET25 square setup. Concern is that nobody seems to be running these but I have a sentimental thing for this wheel specifically (ran an RG-R square setup on my E36M3 and then staggered on my E46M3). I just really love the classic clean forged deep dish these wheels bring without the complexity of a two piece ect. I've got the 666 wheels currently but want to go more of a backdated classic look. I'm also considering the LM or LM-Rs in a 19.

I believe the rears will fit with no issues and actually be a pretty much perfect. The fronts I'm concerned with interference on the brakes at the inner face of the spokes, likely there should be enough clearance in diameter. I'll be running Ohlins coilovers so there is also a concern for interference with that. I'll probably just run 275/35 19s all around if I go this route.

If anyone has a definitive answer on the RG-R I would appreciate it! I did find someone running an RG-R 19*8.5 Et32 up front but I'm assuming they must be running a fat spacer or it would be significantly pulled in. Ideally I would like to avoid spacers but would consider a thin spacer up front to gain clearance if needed. Thanks!

krudmunk · 06-20-2022, 11:19 AM

You should be fine both front and rear. I'd do 265/35 and 285/35. Keep the same stagger as OEM.

275/35 front depending on how much you're lowered will hit the fender liner full turn if you run 10mm spacers. I think 5mm is ok with this tire setup.

If you go square 275/35, overall diameter is pretty close to OEM , so you shouldn't have any issue with traction control.

However, there is at least 3+ month lead time from Michelin to get PS4S in 275/35. Just something to keep in mind.

Robmbush · 06-20-2022, 11:26 AM

Quote:

Originally Posted by krudmunk

You should be fine both front and rear. I'd do 265/35 and 285/35. Keep the same stagger as OEM.

275/35 front depending on how much you're lowered will hit the fender liner full turn if you run 10mm spacers. I think 5mm is ok with this tire setup.

If you go square 275/35, overall diameter is pretty close to OEM , so you shouldn't have any issue with traction control.

However, there is at least 3+ month lead time from Michelin to get PS4S in 275/35. Just something to keep in mind.

Awesome. Thanks for the insight!

06-20-2022, 10:21 AM	#1
Robmbush New Member 3 Rep 13 Posts Drives: Blk/Blk F80 M3 Comp 2016 Join Date: Jul 2016 Location: Portland, OR iTrader: (0)	*BBS 1910 ET25 RG-R square setup F80 M3?** Hi Guys, Wondering if the BBS RG-R will work in a 1910 ET25 square setup. Concern is that nobody seems to be running these but I have a sentimental thing for this wheel specifically (ran an RG-R square setup on my E36M3 and then staggered on my E46M3). I just really love the classic clean forged deep dish these wheels bring without the complexity of a two piece ect. I've got the 666 wheels currently but want to go more of a backdated classic look. I'm also considering the LM or LM-Rs in a 19. I believe the rears will fit with no issues and actually be a pretty much perfect. The fronts I'm concerned with interference on the brakes at the inner face of the spokes, likely there should be enough clearance in diameter. I'll be running Ohlins coilovers so there is also a concern for interference with that. I'll probably just run 275/35 19s all around if I go this route. If anyone has a definitive answer on the RG-R I would appreciate it! I did find someone running an RG-R 198.5 Et32 up front but I'm assuming they must be running a fat spacer or it would be significantly pulled in. Ideally I would like to avoid spacers but would consider a thin spacer up front to gain clearance if needed. Thanks!
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06-20-2022, 11:19 AM	#2
krudmunk Captain 340 Rep 813 Posts Drives: F80 M3 Join Date: Apr 2020 Location: San Francisco iTrader: (3)	You should be fine both front and rear. I'd do 265/35 and 285/35. Keep the same stagger as OEM. 275/35 front depending on how much you're lowered will hit the fender liner full turn if you run 10mm spacers. I think 5mm is ok with this tire setup. If you go square 275/35, overall diameter is pretty close to OEM , so you shouldn't have any issue with traction control. However, there is at least 3+ month lead time from Michelin to get PS4S in 275/35. Just something to keep in mind.
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