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Old 04-07-2006, 05:53 PM   #1
halobeamin
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Default wheel/tire question

may seem stupid, but i was reading one of the previous posts about tire dimensions and rim dimensions, yada yada yada

anyway.. i plan on putting 17" tuners at the end of this month, and from what i read

225/45/17 would be the way to go because it would mean no further adjustments to the frame/bumpers???

i suppose i could purchase springs if needed; for i do not want any rubbing/major adjustments
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Old 04-07-2006, 06:14 PM   #2
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This may help. If you don't have Excel, I think there's an online version of this somewhere. As long as you keep the overall diameter close to stock and the offset is correct, you shouldn't have rubbing issues.

http://www.pelicanparts.com/BMW/tech..._tire_calc.htm
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Old 04-07-2006, 06:44 PM   #3
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You'll be good to go with 225/45/17. The size fits widths between 7.5"-8.5". They will also give you good protection against wheel dammage.

Btw, what is the wheel offset? 42mm? 40mm? 38mm? 35mm?

Cheers,
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Old 04-07-2006, 06:45 PM   #4
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225's on the back. 215's on the front.

of coarse, i was stupid and ran 205's and kerbed my rims
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Old 04-07-2006, 08:46 PM   #5
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Default Wheels & TIres

I am running 17" rims on my Ti, 7.5" wide in front 8.5" in back, with 225/45-17 in front and 245/40-17 in the rear. No rubbing problems. I wonder if 234/45 and 255/40 would fit without rubbing?
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Old 04-07-2006, 11:20 PM   #6
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Quote:
Originally Posted by 30yrMbr
I am running 17" rims on my Ti, 7.5" wide in front 8.5" in back, with 225/45-17 in front and 245/40-17 in the rear. No rubbing problems. I wonder if 234/45 and 255/40 would fit without rubbing?
i take it you don't have it lowered?
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Old 04-08-2006, 01:33 AM   #7
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Yes, it is lowered, scrapping on the speed bumps. Running Bilstein Sports and H&R springs, so is probably 3/4 to 1.5 inches lower. No rubbing issues.
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Old 04-08-2006, 11:36 PM   #8
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surprised you have no rubbing issues in the back with 245s. what's the offset of front/rear?
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current mods: bilstein sports, bavauto springs, e30 m3 LCABs, solid metal ball joints, bavauto RSMs w/reinforcements, e30 3.73 LSD & halfshafts, supersprint cat-back exhaust, turner rear sway bar reinforcements, IE poly subframe & RTABs + camber/toe kits, powdercoated e36 32x front calipers, sport mirrors, H&R 28mmF/19mmR sway bars, x-brace, auto solutions SSK w/poly bushing upgrade, BMW CD43 head unit, DICE HD Radio w/iPod integration and "stealth" HD antenna, staggered style 68s, orange electronic TPMS, leather arm rest, JT Designs metal undertray

acquired and awaiting install: heated seat kit, cali top switch relo, lumbar support kit, park distance control kit, heated washer nozzle kit, m-coupe rear subframe, trailing arms, differential, and halfshafts, m-coupe front/rear brakes with master cylinder, under hood light kit, mud flaps, rear sun blind, auto-dimming rear view mirror, tilt steering wheel retrofit, apexcone 5000K HIDs with 55W ballasts




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Old 04-11-2006, 06:10 AM   #9
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Quote:
Originally Posted by cali-ti
surprised you have no rubbing issues in the back with 245s. what's the offset of front/rear?
I'll have to check, they are the M3 Ltw forged wheels.
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Old 04-11-2006, 07:06 AM   #10
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Quote:
Originally Posted by cali-ti
surprised you have no rubbing issues in the back with 245s. what's the offset of front/rear?
I never had rubbing issues in the back of mine with the same setup thought i did up front for about a week.
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