Very harsh ride

[kpkimmel1983]

Anyone experience very harsh ride and every bump is like a thud in your brain? Would changing the rims to 18” help?

 

[AntD77]

I definitely wouldn't call it harsh. It is sporty and firm for sure, doesn't ride like an Escalade or Tahoe, but it isn't supposed to.

 

[NWExplorerST]

Going to a larger tire might help a bit. Overall I don't think the ride stiffness is that bad.

 

[AntD77]

A larger sidewall will definitely soften the ride, but will make it more prone to sidewall flex through corners, making the handling worse. Not sure if dropping to an 18" rim will be an issue with brake rotor clearance or not, so you will have to check that out.

 

[UNBROKEN]

Have you checked the tire pressure? They ship with 45+ psi and a lot of dealers don’t lower it to the 33 it should be.

 

[Kevin 1456]

if you have the ST you cant go to an 18" rim i believe, the rotors are too large.

 

[kpkimmel1983]

if you have the ST you cant go to an 18" rim i believe, the rotors are too large.

Sure you can

 

[Cdubya]

Maybe something's wrong. I would hardly call the ride harsh. 18" rims are definitely more comfy...have them for my winter rims, but not a night and day difference.

 

[Kevin 1456]

Sure you can

isnt the point of the ST street pack larger wheels since the rotors are larger?

 

[TNSmokee]

Have you checked the tire pressure? They ship with 45+ psi and a lot of dealers don’t lower it to the 33 it should be.

Thanks! Going through the threads I found this one wondering why the ride was so harsh. I figured it was the suspension. The tire pressures were set at 47lbs and one was nearly 50. I've never seen this before but it defiantly improved my situation.

 

[kpkimmel1983]

Thanks! Going through the threads I found this one wondering why the ride was so harsh. I figured it was the suspension. The tire pressures were set at 47lbs and one was nearly 50. I've never seen this before but it defiantly improved my situation.

my tires says 40 PSI is the correct PSI

 

[sadeen]

Maybe something's wrong. I would hardly call the ride harsh. 18" rims are definitely more comfy...have them for my winter rims, but not a night and day difference.

Hi do you mind sharing a link to compatible 18" wheels? I'd like a winter set.

When I bought mine, the tire pressure was ~45 psi per tire. I had the dealer set them correctly and it made a big difference (from the test drive at 45 psi). Also it seems to me to soften up a bit after some miles breaks it in.

 

[Cdubya]

Hi do you mind sharing a link to compatible 18" wheels? I'd like a winter set.

I bought my wheels and tires from Tirerack. They do the research on fitment. I like that all I have to do is slap them on--they take care of hubcentric rings, TPMS install, appropriate lugnuts and roadforce balancing. I bought a TPMS clicker on Amazon to sync them to the car.

 

[UNBROKEN]

my tires says 40 PSI is the correct PSI

Max and correct are 2 different things. If you have oem wheels go by the sticker in the door jamb which is 33psi.

 

[UNBROKEN]

I bought my wheels and tires from Tirerack. They do the research on fitment. I like that all I have to do is slap them on--they take care of hubcentric rings, TPMS install, appropriate lugnuts and roadforce balancing. I bought a TPMS clicker on Amazon to sync them to the car.

Return the TPMS tool...they self learn after a few miles of driving. You don’t need a tool.

 

[TNSmokee]

Return the TPMS tool...they self learn after a few miles of driving. You don’t need a tool.

I didn't know that either, but is good to know when I rotate the tires.