Ride quality on wheels size thoughts

TexasZed4MC · 04-25-2012, 06:38 AM

Trying to decide on a size for a new set of wheels. 18" or 19" the reason I am even thinking about 19" wheels is that I don't really like the tire size changes when going to wider wheels front and rear. 245's and 275's are both a little on the short side and affect the speedometer accuracy. 19" tire options are FAR closer to the stock size tires and will maintain the speedometer accuracy. My concern on 19" wheels is how much rougher of a ride is the 19" setup? I know some of it depends on the tires itself. These will be the daily driver setup and no real ultra sticky tires will be needed, I have a track setup for that.

kennyfrc · 04-25-2012, 06:54 AM

18"

Beedub · 04-25-2012, 06:56 AM

didnt notice any rougher ride with the 19s, in my case they were lighter than the stock units.... genuinely didnt notice a worse or crashier ride..

dubsesd · 04-25-2012, 07:04 AM

My 19's with street tires ride much better than my factory 18's and are significantly lighter.

inTgr8r · 04-25-2012, 07:31 AM

IMO if it's strictly street DD, go with 19"
I think they're the perfect size for "looks"
You won't notice much if any difference in ride quality.

Are you on OE suspension?

elerner61 · 04-25-2012, 09:18 AM

100% depends on the road conditions where you drive. Uneven or bad road conditions with potholes a possibility? Then go with 18's. Assuming the same rim (not comparing OEM 18's vs other 19's) the 18's will be lighter than the 19's resulting in less "crashing" and also reduce your risk of from rim damage.

If you've got good road conditions then it sounds like people are having good experiences with 19's. I run 18's both summer and winter rims. My general road conditions here in Westchester county NY are bad.

TexasZed4MC · 04-25-2012, 10:03 AM

Yes I have stock suspension, Here where I am at in Texas we have really good roads. No rutting or broken payment.

04-25-2012, 06:38 AM	#1
TexasZed4MC Captain 148 Rep 688 Posts Drives: 2006 Interlagos Z4 M Coupe Join Date: Oct 2011 Location: Texas iTrader: (1)	Ride quality on wheels size thoughts Trying to decide on a size for a new set of wheels. 18" or 19" the reason I am even thinking about 19" wheels is that I don't really like the tire size changes when going to wider wheels front and rear. 245's and 275's are both a little on the short side and affect the speedometer accuracy. 19" tire options are FAR closer to the stock size tires and will maintain the speedometer accuracy. My concern on 19" wheels is how much rougher of a ride is the 19" setup? I know some of it depends on the tires itself. These will be the daily driver setup and no real ultra sticky tires will be needed, I have a track setup for that. __________________ Lone Star Chapter BMWCCA HPDE Event Chair, Texas Trifecta Event Chair, & BMWCCA driving Instructor
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04-25-2012, 06:54 AM	#2
kennyfrc First Lieutenant 18 Rep 376 Posts Drives: 2008 Z4MC Join Date: Aug 2010 Location: ATL GA iTrader: (1)	18" __________________ Toy: 2008 Silver Z4MC 300WHP/241TQ Mods: OEM Euro Headers, RPI Scoop Daily: 2010 Tacoma Double Cab
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04-25-2012, 06:56 AM	#3
Beedub Major General 423 Rep 5,327 Posts Drives: 2007 Z4 M roadster vt2-500 Join Date: Sep 2007 Location: UK iTrader: (0)	didnt notice any rougher ride with the 19s, in my case they were lighter than the stock units.... genuinely didnt notice a worse or crashier ride.. __________________ Z4MR VT2 - Clubsport build. Multi award winning Detailing \| Wrap \| PPF specialists UK based - www.topwrapz.com
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04-25-2012, 07:04 AM	#4
dubsesd #dubspec 6328 Rep 5,200 Posts Drives: G05 X5/ 2016 F80 M3 INDVL Join Date: Jul 2011 Location: Ottawa iTrader: (2)	My 19's with street tires ride much better than my factory 18's and are significantly lighter. __________________ LCI ///F80 M3 Individual Atlantis Metallic / Black Full / Carbon Cermics / 6MT MPE / M Performance & Carbon package / KW v3 / 20" HRE R101LW / 20" HRE 527s / Michelin PSS / 20% tint / 3d Design / Streckenn splitters / OEM GTS hood / EAS Carbon seatbacks / Carbon RKP sideskirt / Bootmod3 / M Performance Tri color alcantara / AWE S Flow instagram: @ dubsesd
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04-25-2012, 07:31 AM	#5
inTgr8r Lieutenant General 2426 Rep 11,667 Posts Drives: M2 Comp Join Date: Mar 2006 Location: Toronto iTrader: (10)	IMO if it's strictly street DD, go with 19" I think they're the perfect size for "looks" You won't notice much if any difference in ride quality. Are you on OE suspension? __________________ '21 M2C Hockenheim Silver '18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold)
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04-25-2012, 09:18 AM	#6
elerner61 Major 157 Rep 1,107 Posts Drives: '07 Z4M Roadster Join Date: May 2011 Location: Mount Kisco, NY iTrader: (0)	100% depends on the road conditions where you drive. Uneven or bad road conditions with potholes a possibility? Then go with 18's. Assuming the same rim (not comparing OEM 18's vs other 19's) the 18's will be lighter than the 19's resulting in less "crashing" and also reduce your risk of from rim damage. If you've got good road conditions then it sounds like people are having good experiences with 19's. I run 18's both summer and winter rims. My general road conditions here in Westchester county NY are bad.
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04-25-2012, 10:03 AM	#7
TexasZed4MC Captain 148 Rep 688 Posts Drives: 2006 Interlagos Z4 M Coupe Join Date: Oct 2011 Location: Texas iTrader: (1)	Yes I have stock suspension, Here where I am at in Texas we have really good roads. No rutting or broken payment. __________________ Lone Star Chapter BMWCCA HPDE Event Chair, Texas Trifecta Event Chair, & BMWCCA driving Instructor
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