I have a moderately lowered 540iT (-20mm front, -15mm rear) and looking to upgrade from my stock setup (edit: which is 17x8 ET20 235/45 and 17x9 ET26 255/40).
lowered1.jpg
Not sure if I can get away with running 265/35/18 square or if I should play it safe with 255s instead. I don't mind running a small spacer upfront if necessary to clear the strut but I really don't want to rub anywhere.
TIA
Last edited by Kaiv; 10-18-2018 at 10:10 PM.
Current:
Alpine White E46 325i Touring S54 6MT
Titanium Silver E39 540i Touring M-Sport S62 6MT
Past:
Alpine White E46 330i ZHP Sedan S54 6MT
Interlagos Blue E85 Z4 M Roadster 6MT
Le Mans Blue E92 M3 6MT
Japan Red E46 325i Touring S54 6MT
Estoril Blue Individual E46 M3 Coupe 6MT
Cosmos Black E36 M3 Coupe S54 6MT
Alpine White E92 M3 6MT
Alpine White E90 M3 6MT
Laguna Seca Blue E46 M3 Coupe 6MT
Jet Black E36 325is S52 5MT
Lagoon Green E36 325is 5MT
I’m having same dilemma right now as I’m looking to purchase new tires so I’m curious to hear the thoughts on this...
Current setup:
18x9 Style 42 square setup with 245/40 tires all around. Front is lowered with H&R sport springs on Koni Yellows....I also have 15mm spacers. There are no issues with rubbing.
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17x8 to a 18x9 is one inch difference= .5 inch closer to the strut and .5 inch closer to the fender..
.then the -20ET vs the-24et ...the 24et is placing the wheel closer to the strut by at least 4MM. 17mm total towards the strut (per tire calculator found online)
then you have the sidewall clearance.
if you increase the width of the rim will, you will have to decrease the ET numerically lower. Most ETs above 20mm will need spacers
Last edited by 525i Enjoy; 10-18-2018 at 06:14 PM.
Thanks, I understand how offsets work, I was mainly looking for real world experience Search results were inconclusive, lots of contradicting info.
Anyways, I just realized my stock wheels are staggered (all this time I thought I had 17x8 square ) so I went and bolted a rear wheel (17x9 +26 255/40) up front. It sat tight against the strut but well within the fender.
At this point I think the 18x9 +24 will fit nicely with a 10mm spacer. Still unsure about the tire size though. 255/35/18 would definitely work since the width and diameter is identical to the 255/40/17 but the sidewall would be 12.5% thinner and I don't really like skinny rubberband sidewalls. A 265/35/18 would have a fatter more stock-like sidewall but will it fit? Back to my original question I guess!
Please share some pics I have the same springs and my 18x9 have the same offsets!
Last edited by Kaiv; 10-18-2018 at 10:11 PM.
Current:
Alpine White E46 325i Touring S54 6MT
Titanium Silver E39 540i Touring M-Sport S62 6MT
Past:
Alpine White E46 330i ZHP Sedan S54 6MT
Interlagos Blue E85 Z4 M Roadster 6MT
Le Mans Blue E92 M3 6MT
Japan Red E46 325i Touring S54 6MT
Estoril Blue Individual E46 M3 Coupe 6MT
Cosmos Black E36 M3 Coupe S54 6MT
Alpine White E92 M3 6MT
Alpine White E90 M3 6MT
Laguna Seca Blue E46 M3 Coupe 6MT
Jet Black E36 325is S52 5MT
Lagoon Green E36 325is 5MT
Please share some pics I have the same springs and my 18x9 have the same offsets![/QUOTE]
Sent from my iPhone using Tapatalk
Not bad at all. Looks less stretched than I expected.
I took some measurements and decided to order some 265/35. I'll report back when I get them mounted.
Current:
Alpine White E46 325i Touring S54 6MT
Titanium Silver E39 540i Touring M-Sport S62 6MT
Past:
Alpine White E46 330i ZHP Sedan S54 6MT
Interlagos Blue E85 Z4 M Roadster 6MT
Le Mans Blue E92 M3 6MT
Japan Red E46 325i Touring S54 6MT
Estoril Blue Individual E46 M3 Coupe 6MT
Cosmos Black E36 M3 Coupe S54 6MT
Alpine White E92 M3 6MT
Alpine White E90 M3 6MT
Laguna Seca Blue E46 M3 Coupe 6MT
Jet Black E36 325is S52 5MT
Lagoon Green E36 325is 5MT
YES it'll fit, mine is 18x10.5 275/35 square +25 rear and +17 front to clear the strut.
95 318is - m52 powered, 97 328is - M-package, 01 540iT/6speed
Ended up going with 3mm spacers all around. Wheels and tires are 18x9 style 37s and 265/35 contis. Fronts spacers were required to clear the struts. Looks great and fits great IMHO!
18.jpg
Current:
Alpine White E46 325i Touring S54 6MT
Titanium Silver E39 540i Touring M-Sport S62 6MT
Past:
Alpine White E46 330i ZHP Sedan S54 6MT
Interlagos Blue E85 Z4 M Roadster 6MT
Le Mans Blue E92 M3 6MT
Japan Red E46 325i Touring S54 6MT
Estoril Blue Individual E46 M3 Coupe 6MT
Cosmos Black E36 M3 Coupe S54 6MT
Alpine White E92 M3 6MT
Alpine White E90 M3 6MT
Laguna Seca Blue E46 M3 Coupe 6MT
Jet Black E36 325is S52 5MT
Lagoon Green E36 325is 5MT
Looks good!
1994 325is (2006-2010) -- 1989 325i M50 Swap (2011 - 2014) -- 2001 525iT (2018 -Current)
I've got 18x9 front and 18x11 rear with 265/35/18 all around on konis and h&r sports. No rubbing, no spacers
Current:
Alpine White E46 325i Touring S54 6MT
Titanium Silver E39 540i Touring M-Sport S62 6MT
Past:
Alpine White E46 330i ZHP Sedan S54 6MT
Interlagos Blue E85 Z4 M Roadster 6MT
Le Mans Blue E92 M3 6MT
Japan Red E46 325i Touring S54 6MT
Estoril Blue Individual E46 M3 Coupe 6MT
Cosmos Black E36 M3 Coupe S54 6MT
Alpine White E92 M3 6MT
Alpine White E90 M3 6MT
Laguna Seca Blue E46 M3 Coupe 6MT
Jet Black E36 325is S52 5MT
Lagoon Green E36 325is 5MT
Thanks! It looks really good. So that was 3mm spacers, stock front struts? Sorry if I missed it in earlier posts
Set the controls for the heart of the sun
Correct, stock struts and 3mm spacers.
Thanks!
Current:
Alpine White E46 325i Touring S54 6MT
Titanium Silver E39 540i Touring M-Sport S62 6MT
Past:
Alpine White E46 330i ZHP Sedan S54 6MT
Interlagos Blue E85 Z4 M Roadster 6MT
Le Mans Blue E92 M3 6MT
Japan Red E46 325i Touring S54 6MT
Estoril Blue Individual E46 M3 Coupe 6MT
Cosmos Black E36 M3 Coupe S54 6MT
Alpine White E92 M3 6MT
Alpine White E90 M3 6MT
Laguna Seca Blue E46 M3 Coupe 6MT
Jet Black E36 325is S52 5MT
Lagoon Green E36 325is 5MT
Nice looking car...
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'86 528e
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