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2010 2011 BMW 5 Series Forum F10 F10 Technical Topics Wheels / Tires / Suspension / Brakes Help, need to fit 305 r888
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      06-08-2018, 09:13 PM   #1
M335
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Help, need to fit 305 r888

Hello guys, I’m planning to fit 305/35/20 r888 on the back of my 550i for a better traction & wonder if anyone has done that before on regular 5 series
Thinking of 20x11 with et40
Here’s how it sits right now on M5(20x10 et36) wheels stock suspension & 285 PSS, perfect fitting no rubbing but luck of traction
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      06-09-2018, 10:18 AM   #2
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305/35-20 won't fit with ET40.

That tire is 7% taller than OEM rear 20" size (275/30-20).

295/35-20 (6% taller) will fit with 10" wide wheels and ET40, not sure about 11" though.

305/30-20 (3% taller) might be another choice.
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      06-29-2018, 10:10 PM   #3
M335
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How about 20x11 with et43
Anyone run this?
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      06-30-2018, 12:40 AM   #4
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this is my 20x11 et 40mm 295's and I don't think I can fit a 305 without issues?

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      06-30-2018, 01:21 PM   #5
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Quote:
Originally Posted by M335 View Post
Hello guys, Iím planning to fit 305/35/20 r888 on the back of my 550i for a better traction & wonder if anyone has done that before on regular 5 series
Thinking of 20x11 with et40
Hereís how it sits right now on M5(20x10 et36) wheels stock suspension & 285 PSS, perfect fitting no rubbing but luck of traction
so here's what i did...if your wheels today with the 285 fits fine...then go check the specs on your new tires you wanna get and measure...tire rack has all the specs.

so for example, the 285 in hankook vs 295 in mich pss was vastly different in terms of width (as the pss seems to run a bit wider than most)...
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      07-01-2018, 06:25 PM   #6
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Quote:
Originally Posted by xxpanipuri View Post
so here's what i did...if your wheels today with the 285 fits fine...then go check the specs on your new tires you wanna get and measure...tire rack has all the specs.

so for example, the 285 in hankook vs 295 in mich pss was vastly different in terms of width (as the pss seems to run a bit wider than most)...
Be honestly with 650+hp I really need toyo r888 315/30/20 on the back
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      07-02-2018, 07:03 AM   #7
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any new information????? these are the same tires I want to run for the hell of it... because all of the traction.. I'm gonna be running the H&R lowering springs wanting to see the best option to go with... I know it all matters in the offset of the wheel
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      07-07-2018, 01:39 AM   #8
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Quote:
Originally Posted by SLOW550i View Post
any new information????? these are the same tires I want to run for the hell of it... because all of the traction.. I'm gonna be running the H&R lowering springs wanting to see the best option to go with... I know it all matters in the offset of the wheel
Nope, looks like no one done 12" on the back period not even 11.5" with beefier tires

Last edited by M335; 07-07-2018 at 10:19 PM.
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