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      09-02-2018, 06:47 PM   #1
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BBS RK2(RK502,RK508) 3 piece converstion

Hey so this is my first post on this forum. I'm a relatively new E92 M3 owner and have been modding away lately. Anyways looking for a little insight to the correct offsets to build my set of BBS RK2's current specs are 18x8.5 et22 18x10 et25. I want to rebuild them and refinish them to 19x10F 19x11R. my goal is to run as much tire while maintaining factory body lines I have no issue hacking up my fender liner a bit and slightly rolling the fenders(not my first rodeo).I am not a stance guy just would like to have some very aesthetically pleasing fitment while being about to have loads of grip on track.I know these aren't the ideal track setup I get it but I want to run these for a bit until my ZE40's arrive . Anyways anything helps! -Stefan
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      09-02-2018, 08:00 PM   #2
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if you want loads of grip on track, get 18's.
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      09-03-2018, 06:25 PM   #3
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There are definitely more big and tall sizes in 19’s than 18’s. But you’ll be limited to about a 285/30-19 up front. On 18’s, there are people running 305mm slicks on 10.5-11” wheels up front. 19” sizes are too tall to run that wide up front. Unless you want to run the Viper ACR’s 295/25-19

Which you should do. Because I want somebody to Guinea pig that tire for me

It’s not a fender liner problem so much as there’s a body seam in the rear of the fender that becomes a real interference problem with the steering lock you will frequently see on track and taller tires

The front fenders are plastic. So don’t roll them unless you like buying fenders.. The rears have no lip to roll so you’ll be pulling them if you need more.

But fender mods or even light massaging aren’t necessary with those wheelwidths. et20-25 up front and et30-32ish ought to be good for the best clearance
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Last edited by Richbot; 09-03-2018 at 06:54 PM..
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      09-03-2018, 06:26 PM   #4
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Quote:
Originally Posted by Richbot View Post
There are definitely more big and tall sizes in 19's than 18's. But you'll be limited to about a 285/30-19 up front. On 18's, there are people running 305mm slicks on 10.5-11" wheels up front. 19" sizes are too tall to run that wide up front.
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Originally Posted by Richbot View Post
There are definitely more big and tall sizes in 19's than 18's. But you'll be limited to about a 285/30-19 up front. On 18's, there are people running 305mm slicks on 10.5-11" wheels up front. 19" sizes are too tall to run that wide up front.

Yeah like I said Im probably look at doing like a 275 F 285 R or 295 R
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      09-03-2018, 07:20 PM   #5
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275/30-19 and 295/30-19 is an easy fit with the offsets in roughly the right spot

Et25 front and 30ish rear, soup
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      09-03-2018, 08:08 PM   #6
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Quote:
Originally Posted by Richbot View Post
275/30-19 and 295/30-19 is an easy fit with the offsets in roughly the right spot

Et25 front and 30ish rear, soup
Really? Thanks any pics?
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