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      06-30-2019, 08:26 PM   #1
MFM5
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Drives: 2015 M5 CP
Join Date: Jun 2012
Location: DFW

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R888Rs on TSW Bathurst with KW HAS

I could not find a tire shop that would mount a 315/30 on a 10” 343 wheel, so I ended up ordering a set of TSW Bathursts. The rears are 10.5” wide with an offset of et25. BTW...the required wheel width for 315s is 10.5-11.5”.

I searched every post that included R888 before pulling the trigger. Others have done this same setup but it was difficult to find conclusive info about the potential for rubbing. Now that the tires are mounted and wheels installed, I have learned R888Rs mounted on this wheel will rub on a lowered car but only on the biggest road dips and then only very slightly. I’m certain 1-1.5 degrees of negative camber will eliminate the rubbing, so now I need to find an good alignment shop. In the meantime, will raise the rear a few mm’s. The R888Rs do hook when my PS4Ss would not, which was the whole point of this experiment. You can see the beginning of rub marks from the edge of the fender lip in the last pic. I’m guessing if this tire was mounted on a 343 wheel (with et34) the tires would not rub.
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'15 Monte Carlo Blue M5 (daily) | '09 GT Silver 997 TT Cab 6-speed
'14 Agate 991 C4S -- sold | '15 Shark Gray Z06 -- wrecked
'08 Silverstone M3 -- sold | '06 Artic Silver 997 C2S Cab -- sold
'09 Black Challenger SRT -- sold | '98 Artic Silver M3 -- sold

Last edited by MFM5; 07-01-2019 at 02:55 PM..
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