2009 genesis 4.6 / 235 50 18 -> 235 55 18 Tire change???

[yoyo711]

Hello

I need to change the tire for all 4 .
But you all know that Ride is Rougher 2009 genesis 4.6 I like to change the tire size to 235 55 18 for a little softer ride.
it's fit on 2009 genesis ??????

Please let me know

Thanks

 

[homeofstone]

Don't change size but go with a Grand Touring tire for a better ride.

 

[Mark_888]

Hello

I need to change the tire for all 4 .
But you all know that Ride is Rougher 2009 genesis 4.6 I like to change the tire size to 235 55 18 for a little softer ride.
it's fit on 2009 genesis ??????

Please let me know

Thanks

You should not increase tire diameter by a significant margin (more than 1%) so that (235 55 18) does not sound like the equivilent 55 aspect ratio tire compared to the OEM 50 aspect ratio tire. You would probably have to go to a 225 width tire if the aspect ratio is increased to 55 to keep the diameter roughly the same.

Instead of doing that, I would also recommend a softer riding tire as has been discussed in many other threads.

• GoodYear Assurance ComfortTread.
• Bridgestone Turunza Serenity
• Various Michelin tires (but try to avoid Energy Saver tires if possible)

You can also upgrade your 2009 suspension to 2010/2011 suspension specs for about $1050 parts and $650 labor at a independent suspension shop (purchase the parts online from a Hyundai dealer). The exact part numbers are listed other threads in this forum. I had this done on my 2009 and it was well worth the cost, especially since mine was an early 2009 model (Hyundai made some minor suspension changes in mid-year of 2009 production run). I would give you the part numbers I used, but mine was for V6, so part numbers are a little different. The parts replaced on my 2009 V6 were the following:

• Front springs (2)
• Front left strut (1)
• Front right strut (1)
• Rear springs (2)
• Rear Shocks (2)
• Rear Stabilizer bar (1)

Please refer to other threads in this forum for more details on parts that need to be replaced on 2009 V8 models.

You could also probably upgrade to the 2012 suspension for an even smoother ride, but the online website where I usually check the part numbers does not have 2012 parts included yet, so not 100% sure it can be done.

Here is website I used to purchase my parts, but there are others (all Hyundai authorized dealers that sell parts online):
http://www.partswebsite.com/newhyundaiparts

 

[robcar]

I ditched my OEM Dunlops recently at only 8600 miles for Continental DWS and the difference in the ride is dramatic. I would say the ride on Chicago's rough roads is at least 30% softer and smoother with Conti DWS.

 

[yoyo711]

Thanks guys~~~~~

 

[martyk]

Mark_888, Why avoid Michelin Energy Saver tires ?

Marty

 

[Mark_888]

Mark_888, Why avoid Michelin Energy Saver tires ?

Marty

Energy Saver tires have lower rolling resistance for better gas mileage and are not quite as smooth riding as some of the other tires specifically designed for comfort (the reasons for this should be intuitively obvious). This is according to various reviews I have seen and also the Michelin website which rates their tires on a 1 to 10 scale of various factors.

However, the Michelin Energy Saver tires are clearly much better than the OEM Dunlops in terms of ride comfort. Also, for those with a 2012 Genesis, the new suspension is more than smooth enough for Michelin Energy Saver tires without any problems at all. For those with a 2009 Genesis (especially those built before March 2009) I would go for the softest tire I could find.

Here is a list of Grand Touring All-Season tires, which shows that the Michelin Primacy (and Goodyear Assurance ComforTred and Bridgestone Turanza Serenity) have better ride comfort than the Michelin Energy tires:
http://www.tirerack.com/tires/surveyresults/surveydisplay.jsp?type=GTAS

 

[motorsportsauthority]

You'll see an almost 1" diameter increase (from 27.3" to 28.2"). So at 60mph you will actually be going 62.