Ride quality with 20x9 & 245/45/20 Goodyear Eagle RSA combo

[1965Jacobs]

I am planning to put on the Factory Reproductions 20x9 300C SRT8 reproduction wheels with Goodyear Eagle RSA 245/45/20 tires. I won't be lowering the car but was wondering if the ride quality will be diminished a lot with this combo. I know with the shorter sidewalls I will sacrifice some ride quality but don't want to it to be real stiff.

Thanks,
Jeremy

[Moose]

Originally Posted by 1965Jacobs

I am planning to put on the Factory Reproductions 20x9 300C SRT8 reproduction wheels with Goodyear Eagle RSA 245/45/20 tires. I won't be lowering the car but was wondering if the ride quality will be diminished a lot with this combo. I know with the shorter sidewalls I will sacrifice some ride quality but don't want to it to be real stiff.

Thanks,
Jeremy

The ride will be compromised by a lot. These cars look good with larger wheels but there is no car that rides nice with 20's or larger. Also, your car will not look like a SRT because the ride height will be taller in the front and it actually looks odd. The front spoiler is also shorter on the regular C so that also plays into the whole look. The right way to do this is to lower the car just a bit to compensate for the wheels. Also, if you really want it to look right add a lower front spoiler.

Back to the ride portion...when you hit manways and other pits in the road you are going to wish you had the original set-up back on there. It might be okay the first month or two, but you will get tired of it. It will also play havock on your front end parts.

A lot of people don't realize how much tire/wheel size matters for ride quality. Ever notice why a lot of high end vehicles stop at 19" wheels? Just one inch matters a lot, believe it or not.

I've got an SRT and I've been studying on lowering the car a tad and going with 19" wheels. I'll have a better handling and riding car.

Hope that helps.

Moose.

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[1965Jacobs]

Moose thanks for the info and advice. Maybe I'll try to find a nice 18" wheel to replace the factory wheels. Just don't like the factory wheels much. If you know of any nice 18" wheels let me know.
Jeremy

[frankieo]

I have 20s and replaced two front tire rods last year.They told me the rims are one of the causes that they broke,the other one pot holes!

[UK CHRYSLER 300C]

I have 20" startechs(Chrysler approved in the UK),I've had the car nearly 3 years,I've covered nearly 15000m,I've had 2 outer track arms(tie rods) and I'm having my 3rd steering rack fitted next week under warranty,its gotta be the wheels and tyres,my sidewalls cant soak up the punishment like the stock sidewalls.245/40z20 on the front and 275/35z20 on the rear.The ride is comfy but I just dont think the 40 profile can soak up the potholes

[fadertoo]

Originally Posted by Moose

The ride will be compromised by a lot.

Gosh! Your answer really surprises me, Moose. I can't intelligently argue, 'cause mine came with the 20s, OEM, but then so did yours. OTOH, I'm sure your springs and shocks are stiffer than mine.

I can only say that I feel mine rides like it's on glass. Freeway ride is nearly noiseless and very smooth. I hear engine noise over just about everything else, and that's only with the radio off. Around town I feel railroad tracks and manhole covers and the like that are up or down an inch or more from the road surface, but otherwise it's smooth there, too. I couldn't be happier with the ride. I know it's better than my 300M with 18s was, that I thought rode well, but it's eight years newer, so that has to be taken that into account. I'll have to borrow a C on 18s sometime and see what it feels like.

[Moose]

Originally Posted by fadertoo

Gosh! Your answer really surprises me, Moose. I can't intelligently argue, 'cause mine came with the 20s, OEM, but then so did yours. OTOH, I'm sure your springs and shocks are stiffer than mine.

I can only say that I feel mine rides like it's on glass. Freeway ride is nearly noiseless and very smooth. I hear engine noise over just about everything else, and that's only with the radio off. Around town I feel railroad tracks and manhole covers and the like that are up or down an inch or more from the road surface, but otherwise it's smooth there, too. I couldn't be happier with the ride. I know it's better than my 300M with 18s was, that I thought rode well, but it's eight years newer, so that has to be taken that into account. I'll have to borrow a C on 18s sometime and see what it feels like.

I can only say what I believe. Yes it rides better on the freeway. But on semi nasty roads I have not rode in any 20" or larger wheel vehicle/s and could say it rides "nice." When you hit pot holes and nasty pits that's just too much wheel and tire for the front end to deal with, IMO.

I'll buy you lunch if you ride in a 300C with stock 18"s and can honestly say yours rides as nice. Take it down the roads that the city can dish out and go over some man ways. There is a world of difference.

I owned a 300 C 5.7 before my SRT. I put 20" wheels on it and at first it was nice. It took me just about a week and a half before I said, "damn, this thing rides like chit." I then bought my SRT and now I say, "damn, this thing rides like chit but it handles great." And yes, it drives down the freeway and other nice roads very sweet!

[fadertoo]

Originally Posted by Moose

I'll buy you lunch if you ride in a 300C with stock 18"s and can honestly say yours rides as nice.

I'll tell you what, sir. If I ever get there, or you ever get here. I'll buy you dinner... regardless!

[rsevigny]

Originally Posted by UK CHRYSLER 300C

I have 20" startechs(Chrysler approved in the UK),I've had the car nearly 3 years,I've covered nearly 15000m,I've had 2 outer track arms(tie rods) and I'm having my 3rd steering rack fitted next week under warranty,its gotta be the wheels and tyres,my sidewalls cant soak up the punishment like the stock sidewalls.245/40z20 on the front and 275/35z20 on the rear.The ride is comfy but I just dont think the 40 profile can soak up the potholes

Just joined and first post.....done a lot of reading from all of you and very helpful in deciding on rims and wheels. Before i make the leap and invest this cash...one last request for input.... I am thinking 20 X 9.5 rims by Platnium Type 814 Mezlan with 275/40/20 all round but then think perhaps it may be better to put 255/40/20 on the front...I am also thinking about lowering it slightly.

I do a fair amount of driving on hwy's...need some remaining comfort to a good looking ride...I have a 2005 300 Touring model.

Can you give me your thoughts on 275/40's all round or the stagger approach and is there still room to lower the car slightly with 275's on the rear (no rubbing etc).

I am going to see my tire guy tomorrow and get his input and "measurements"...

Thanks in advance
Rob