Tire Size: 205/50/17 & 225/45/17 - BMW 3-Series (E90 E92) Forum

HoJun · 12-13-2009, 01:26 AM

what is difference btw 205/50/17 and 225/45/17 tires?
is 225/45/17 much wider than 205/50/17? how much wider?

thank you.

e9009 · 12-13-2009, 02:05 AM

225-205 = 20 mm

HoJun · 12-13-2009, 02:20 AM

Quote:

Originally Posted by e9009

225-205 = 20 mm

damn! i should have bought 225 then..
didn't exactly know how to read those sizes..

how about 205/50/17 and 205/55/16, are they any different in width?
205/50/17 any wider? it seems a bit wider then 205/55/16 which is my stock tire.

samchoi604 · 12-13-2009, 03:01 AM

HoJun · 12-13-2009, 03:53 AM

Quote:

Originally Posted by samchoi604

THANK YOU;

i replaced my type 156 with m5 rep 205/45/17 for winter because type 156 seemed too narrow, but i ended up having same width. damn

should've done more research.

academic · 12-13-2009, 04:24 AM

Quote:

Originally Posted by HoJun

THANK YOU;

i replaced my type 156 with m5 rep 205/45/17 for winter because type 156 seemed too narrow, but i ended up having same width. damn

should've done more research.

For winter tires, you should always go as narrow and small as possible. Therefore, 205/50/17 is preferred over 225/45/17 (or over any 18 or 19 inch for that matter) for a 330i/335i and 205/55/16 is optimal on a 323i/325i/328i.

Ideally, you should also stick to the above tires sizes since this will result in minimal effects on the accuracy of your speedometer reading. Your speedometer may be slightly more off with a 205/45/17 tire size unless you mean 225/45/17.

HoJun · 12-13-2009, 04:57 AM

[quote=academic;6356811]For winter tires, you should always go as narrow and small as possible.

same as what the local tire shop suggested me when i bought 205/50/17

go narrow with winter tire
thank you.

e90sexion · 12-13-2009, 05:32 PM

narrow tires perform better in winter
but I believe most of people here runs popular size 225/45/17
and I run 225/40/18 all around for winter

hubble bubble · 12-13-2009, 05:56 PM

225/45-17 is narrower, at least on the back.

That's what I run and I ski in the mountains (I live in Calgary) every weekend and my 225/45-17 Hakkapeliittas work great for me.

16 inch wheels (and many 17s) won't clear the brakes on a 330/335.

boostedstyle95 · 01-21-2013, 06:01 AM

[quote=HoJun;6356849]

Quote:

Originally Posted by academic

For winter tires, you should always go as narrow and small as possible.

same as what the local tire shop suggested me when i bought 205/50/17

go narrow with winter tire
thank you.

quick question did the tires stretch? cause i just wanna see what a 205 would look like on a 8inch wheel

12-13-2009, 01:26 AM	#1
HoJun Second Lieutenant Drives: BMW E90 328xi Join Date: Mar 2009 Location: Toronto Posts: 242 iTrader: (3)	Tire Size: 205/50/17 & 225/45/17 what is difference btw 205/50/17 and 225/45/17 tires? is 225/45/17 much wider than 205/50/17? how much wider? thank you. __________________ 2007 AW e90 328xi Navi.Logic7: Lumar 20% tint, m3 front rep, 19" LC Leman/ Toyo T1R, H&R Coilover, BMW Performance Exhaust, M-Tech steering wheel, Matte Black Grill, LED sidemarker, LED License, MTEC 6000k D1S, RF P1000-1BD amp, RF P3D412 sub
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12-13-2009, 04:57 AM	#7
HoJun Second Lieutenant Drives: BMW E90 328xi Join Date: Mar 2009 Location: Toronto Posts: 242 iTrader: (3)	[quote=academic;6356811]For winter tires, you should always go as narrow and small as possible. same as what the local tire shop suggested me when i bought 205/50/17 go narrow with winter tire thank you. __________________ 2007 AW e90 328xi Navi.Logic7: Lumar 20% tint, m3 front rep, 19" LC Leman/ Toyo T1R, H&R Coilover, BMW Performance Exhaust, M-Tech steering wheel, Matte Black Grill, LED sidemarker, LED License, MTEC 6000k D1S, RF P1000-1BD amp, RF P3D412 sub

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12-13-2009, 02:05 AM	#2
e9009 Private First Class Drives: E90 LCI Join Date: Apr 2009 Location: Ontario, Canada Posts: 133 iTrader: (1) Garage List 2009 E90 [0.00]	225-205 = 20 mm

12-13-2009, 03:01 AM	#4
samchoi604 Colonel Drives: black on black Join Date: Mar 2009 Location: Burnaby, BC Posts: 2,296 iTrader: (3)

12-13-2009, 05:32 PM	#8
e90sexion E 9 0 S E X I O N Drives: like old times Join Date: Sep 2006 Location: Vancouver/WA Posts: 5,251 iTrader: (16)	narrow tires perform better in winter but I believe most of people here runs popular size 225/45/17 and I run 225/40/18 all around for winter

12-13-2009, 05:56 PM	#9
hubble bubble Captain Drives: 2008 335i Join Date: Feb 2009 Location: Calgary, AB, Canada Posts: 682 iTrader: (0)	225/45-17 is narrower, at least on the back. That's what I run and I ski in the mountains (I live in Calgary) every weekend and my 225/45-17 Hakkapeliittas work great for me. 16 inch wheels (and many 17s) won't clear the brakes on a 330/335.