RCF wheels on an ISF
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#95
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I'm running the same setup on my 2012 ISF, 275 PSS's on the rear. I'm also rocking 10mm spacers all around, which should effectively give me a +41 offset in the rear and it looks like I have plenty of room with no rubbing. In fact, I was thinking of going up to 285's next time around.
#96
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Lobuxracer, are you a lot lower than stock?
I'm running the same setup on my 2012 ISF, 275 PSS's on the rear. I'm also rocking 10mm spacers all around, which should effectively give me a +41 offset in the rear and it looks like I have plenty of room with no rubbing. In fact, I was thinking of going up to 285's next time around.
I'm running the same setup on my 2012 ISF, 275 PSS's on the rear. I'm also rocking 10mm spacers all around, which should effectively give me a +41 offset in the rear and it looks like I have plenty of room with no rubbing. In fact, I was thinking of going up to 285's next time around.
Keep in mind he was replying to Lou who is running the 295/30 tire on a 19x10 RC F wheel which has the 41+ offset..
![](https://www.clublexus.com/forums/attachments/is-f-2008-2014/376628d1451241539-rcf-wheels-on-an-isf-rear-offsets.jpg)
Had Lou run the 285 or 275 he would probably not need to do much back there..
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#97
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^^^^You are correct. With the 295/30, I was trying to get back to the stock wheel OD of 26" all around. The 255/35 and 295/30 combo do just that. If the wheel had 5mm less offset, there probably wouldn't have been any issues either. But with the fenders rolled, it rubs very little. I take it easy when going over speed bumps or drainage depressions.
But I am very happy with the look of the wheels and the meat of the tires, and it feels very neutral in the corners. With the bigger tires and the RRRacing LCA Bushings, it's extremely tossable, with no hint of understeer. The SO-4s stay planted
Lexus should have done this in the first place.
On another note, I noticed that the RC350 FSport runs 8 and 9s like the original ISF did, but they are now using 235/40/19 and 265/35/19 rubber front and back. One size bigger than the stock ISF, front and rear. And the offsets are 45mm Front and 60mm Rear. Fronts are the same as the ISF, rears are 5mm more conservative!
Lou
But I am very happy with the look of the wheels and the meat of the tires, and it feels very neutral in the corners. With the bigger tires and the RRRacing LCA Bushings, it's extremely tossable, with no hint of understeer. The SO-4s stay planted
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On another note, I noticed that the RC350 FSport runs 8 and 9s like the original ISF did, but they are now using 235/40/19 and 265/35/19 rubber front and back. One size bigger than the stock ISF, front and rear. And the offsets are 45mm Front and 60mm Rear. Fronts are the same as the ISF, rears are 5mm more conservative!
Lou
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