Help PLZ: Tyre hight(s) on my new 20" @ E92 ~ 335i ??

Grublit 335i · 08-07-2009, 08:39 AM

Tomorrow, I'm going to decide on the ET values and tyre sizes of my new 20" Lombartho wheels (http://www.e90post.com/forums/showthread.php?t=278282). Ik know the '25' in for example 275/25/20, is the hight of the tyre, as a percentage or the width (275).

Because I probally won't buy RFT's (which I drive now) again, because of the very limited range of sizes in RFT's; I'd like to avoid driving on 20's with a very low 25-profile (imagine getting a flat tyre om them + the hardness of the ride, pff ...).
My dealer says that a 20" rim with a tyre hight of '30' is simply too high for the back axle and that I will get error readings and stuff like that from my car's computer...?? The front may be a 30-profile.
Allthough I've seen setups on this forum with 20" rims with a 30-profile at the back...
I was thinking of a setup:
(235 or 225)/(35 or 30)/20 @ 8.5x20" + (265 or 255)/30/20 @ 9.5x20".
Btw, I can choose ET values from 25 up to 45...

Please help me out before tomorrow, if possible...

Thanks in advance!

Grublit 335i · 08-10-2009, 02:36 AM

Thanks for your help ...

John_01 · 08-10-2009, 06:53 AM

So you want to avoid 25 profile tyres and the reduce the risk of bending the wide rear rims.. Why not run something a bit narrower on the rear such as 245/30/20 on 20x8.5" rims? The diameter is still larger, but it should work if you are able to fit the same or similar size on the front.

joyride08 · 08-10-2009, 10:42 AM

http://www.1010tires.com/tiresizecalculator.asp

Compare your options to stock.

Grublit 335i · 08-10-2009, 03:32 PM

Quote:

Originally Posted by John_01

So you want to avoid 25 profile tyres and the reduce the risk of bending the wide rear rims.. Why not run something a bit narrower on the rear such as 245/30/20 on 20x8.5" rims? The diameter is still larger, but it should work if you are able to fit the same or similar size on the front.

Well, this is very reassuring. As mentioned, I've ordered my wheels last saturday. And after some talking, we decided that it will be 245/30/20 all around ... just like you suggest. In general, it's perhaps not the ideal solutions; but with my remarques and wishes, it seems to be the best choice. You know what you're talking about ;-).
I'm really curious, this saturday they will be fitted

!

Quote:

Originally Posted by joyride08

http://www.1010tires.com/tiresizecalculator.asp

Compare your options to stock.

Thanks for your imput guys.

John_01 · 08-10-2009, 06:32 PM

Please post some pics when you are done.

Grublit 335i · 08-11-2009, 01:10 AM

Yep, no problem. I'm gonna let my car clean by a profesionnal company after the rims have been installed, then I'll let you know !

Grublit 335i · 09-02-2009, 03:14 PM

Picture taken at and by the dealer himself...
Now I just have to adjust the ride hight a little bit,
put some spacers at the back, bring it to a special car cleaning company
and make a 'photo shoot' of the final result.

To be continued...

John_01 · 09-03-2009, 07:58 AM

Wow! Very clean and eye catching. The wheels look much better on your black car than the white one you posted before. I am normally not a fan of 20" on the 3 series, but yours is certainly impressive.

I think the ride height is perfect. Did you have any hassles with rubbing?

Grublit 335i · 12-14-2010, 12:55 PM

See my new thread please: http://www.e90post.com/forums/showthread.php?t=465472]

08-07-2009, 08:39 AM	#1
Grublit 335i Fugly Karting 25 Rep 67 Posts Drives: BMW 335i Coupé_Black_19" (230) Join Date: Nov 2007 Location: Baarle-Hertog (Belgium) iTrader: (0)	Updated footage of 20" Lombartho's @ my black E92 ~ 335i Tomorrow, I'm going to decide on the ET values and tyre sizes of my new 20" Lombartho wheels (http://www.e90post.com/forums/showthread.php?t=278282). Ik know the '25' in for example 275/25/20, is the hight of the tyre, as a percentage or the width (275). Because I probally won't buy RFT's (which I drive now) again, because of the very limited range of sizes in RFT's; I'd like to avoid driving on 20's with a very low 25-profile (imagine getting a flat tyre om them + the hardness of the ride, pff ...). My dealer says that a 20" rim with a tyre hight of '30' is simply too high for the back axle and that I will get error readings and stuff like that from my car's computer...?? The front may be a 30-profile. Allthough I've seen setups on this forum with 20" rims with a 30-profile at the back... I was thinking of a setup: (235 or 225)/(35 or 30)/20 @ 8.5x20" + (265 or 255)/30/20 @ 9.5x20". Btw, I can choose ET values from 25 up to 45... Please help me out before tomorrow, if possible... Thanks in advance! __________________ 335i Coupé (6MT) ~ Sapphire Black ~ Black/Alu. interior ~ Electric Sunroof + Rear Blind ~ Prof. GPS ~ Interior Light Package ~ 20" Lombartho LX Black/Polished ~ Eibach Pro Street S coilovers ~ . . . Last edited by Grublit 335i; 12-14-2010 at 02:10 PM..
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08-10-2009, 02:36 AM	#2
Grublit 335i Fugly Karting 25 Rep 67 Posts Drives: BMW 335i Coupé_Black_19" (230) Join Date: Nov 2007 Location: Baarle-Hertog (Belgium) iTrader: (0)	Thanks for your help ... __________________ 335i Coupé (6MT) ~ Sapphire Black ~ Black/Alu. interior ~ Electric Sunroof + Rear Blind ~ Prof. GPS ~ Interior Light Package ~ 20" Lombartho LX Black/Polished ~ Eibach Pro Street S coilovers ~ . . .
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08-10-2009, 06:53 AM	#3
John_01 Colonel 232 Rep 2,643 Posts Drives: E90 325i, E82 135i Join Date: Mar 2009 Location: Sydney, Australia iTrader: (0)	So you want to avoid 25 profile tyres and the reduce the risk of bending the wide rear rims.. Why not run something a bit narrower on the rear such as 245/30/20 on 20x8.5" rims? The diameter is still larger, but it should work if you are able to fit the same or similar size on the front. Last edited by John_01; 08-10-2009 at 07:09 AM..
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08-10-2009, 10:42 AM	#4
joyride08 Joyride 4 Rep 71 Posts Drives: 2007 335i \| Black/Black/Alum Join Date: Apr 2009 Location: Detroit, MI / Louisville, KY iTrader: (2)	http://www.1010tires.com/tiresizecalculator.asp Compare your options to stock. __________________ 2007 335i Coupe \| MT \| Black/Black/Alum \| Sprt + Cold + Prem pkgs
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08-10-2009, 06:32 PM	#6
John_01 Colonel 232 Rep 2,643 Posts Drives: E90 325i, E82 135i Join Date: Mar 2009 Location: Sydney, Australia iTrader: (0)	Please post some pics when you are done.
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08-11-2009, 01:10 AM	#7
Grublit 335i Fugly Karting 25 Rep 67 Posts Drives: BMW 335i Coupé_Black_19" (230) Join Date: Nov 2007 Location: Baarle-Hertog (Belgium) iTrader: (0)	Yep, no problem. I'm gonna let my car clean by a profesionnal company after the rims have been installed, then I'll let you know ! __________________ 335i Coupé (6MT) ~ Sapphire Black ~ Black/Alu. interior ~ Electric Sunroof + Rear Blind ~ Prof. GPS ~ Interior Light Package ~ 20" Lombartho LX Black/Polished ~ Eibach Pro Street S coilovers ~ . . .
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09-02-2009, 03:14 PM	#8
Grublit 335i Fugly Karting 25 Rep 67 Posts Drives: BMW 335i Coupé_Black_19" (230) Join Date: Nov 2007 Location: Baarle-Hertog (Belgium) iTrader: (0)	first picture of new 20" Lombartho rims on my E92 Picture taken at and by the dealer himself... Now I just have to adjust the ride hight a little bit, put some spacers at the back, bring it to a special car cleaning company and make a 'photo shoot' of the final result. To be continued... Attached Images __________________ 335i Coupé (6MT) ~ Sapphire Black ~ Black/Alu. interior ~ Electric Sunroof + Rear Blind ~ Prof. GPS ~ Interior Light Package ~ 20" Lombartho LX Black/Polished ~ Eibach Pro Street S coilovers ~ . . .
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09-03-2009, 07:58 AM	#9
John_01 Colonel 232 Rep 2,643 Posts Drives: E90 325i, E82 135i Join Date: Mar 2009 Location: Sydney, Australia iTrader: (0)	Wow! Very clean and eye catching. The wheels look much better on your black car than the white one you posted before. I am normally not a fan of 20" on the 3 series, but yours is certainly impressive. I think the ride height is perfect. Did you have any hassles with rubbing?
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12-14-2010, 12:55 PM	#10
Grublit 335i Fugly Karting 25 Rep 67 Posts Drives: BMW 335i Coupé_Black_19" (230) Join Date: Nov 2007 Location: Baarle-Hertog (Belgium) iTrader: (0)	Updated footage of 20" Lombartho's @ my black E92 ~ 335i See my new thread please: http://www.e90post.com/forums/showthread.php?t=465472] __________________ 335i Coupé (6MT) ~ Sapphire Black ~ Black/Alu. interior ~ Electric Sunroof + Rear Blind ~ Prof. GPS ~ Interior Light Package ~ 20" Lombartho LX Black/Polished ~ Eibach Pro Street S coilovers ~ . . . Last edited by Grublit 335i; 12-14-2010 at 02:16 PM..
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