18" vs 20" wheels- ride differnece? - Nissan Murano Forum
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#1 Old 03-30-2012, 02:52 PM
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18" vs 20" wheels- ride differnece?

moving from a LE 20" tires to SL- 18". Any noticeable difference in ride quaility?
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#2 Old 03-30-2012, 04:32 PM
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What are the width of the stock 20's? If they're over 7.5" then you might get slightly better MPG if you switch to SL 18's which are 18x7.5

If you get the correct tire size they should ride pretty identical though.

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#3 Old 03-31-2012, 08:10 AM
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Originally Posted by shark77 View Post
moving from a LE 20" tires to SL- 18". Any noticeable difference in ride quaility?
I had the stock 18's at purchase. I bought a set of the LE 20's with stock tires and drove them for 30,000 miles.

When the tires wore out, I put the 18's back on.

Huge difference in ride quality. I HATED the ride with the low profile 20's. However, it did make the car look "cooler"!

Side note:: Bought the 20's with 300 miles on them for $500. Drove them until the tires wore out. Sold the 20 LE wheels (with bald tires) for $500!

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#4 Old 03-31-2012, 09:48 AM
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I've owned many cars and this is my first with 20's. Find NO difference with the ride quality and are very happy with the performance. And the rims are way COOL

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#5 Old 03-31-2012, 02:58 PM
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Having driven both and not really noticing the difference much, my guess would be that someone with a keener feel may notice...others may not. I can't imagine the difference being too great though. Tire brand/type would more likely change the ride feel IMO.

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#6 Old 03-31-2012, 04:08 PM
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I'm surprised that there'd be a big difference in ride quality between the two. Sportier tires generally have stiffer sidewalls. But I have not noticed a big difference in ride quality when going +1" on wheels/tires. The sidewalls on the OEM sized 255/50/20 LE tires are not short by sports car / sport sedan standards.

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#7 Old 03-31-2012, 04:30 PM
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I have both OEM 18 and 20s and do not feel a big difference. Yes a bit smoother on the broken pavement but not a big enough difference . The 20s are much more responsive and stable in the corners. The 18s are snow tires, so that certainly explains the handling, but I really thought they would be softer and smoother.

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#8 Old 03-31-2012, 09:34 PM
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Whatever happened to 14" and 15" tires? When I started driving compacts had 13" wheels, almost all standard cars had 14" wheels, and the big luxury models, Cadillacs and Lincolns, has 15" wheels.

When I bought my first Dodge Interpid it had 16" wheels, which I thought were huge. My 2005 Maxima had 17" wheels, with 18's being optional on the SE. Now we're at 18 & 20" wheels. Where is this going to stop?

Check out a 1964 Chevy Impala with 14" wheels/tires. It's pretty comical looking!

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#9 Old 03-31-2012, 11:18 PM
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There are 30's available... aftermarket of course.

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#10 Old 04-01-2012, 09:02 AM
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I'm looking at putting 13's on my MO!

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#11 Old 04-02-2012, 02:01 PM
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I have a set of 18's from my Maxima that I traded in that I'll use on the Murano as my winter time wheels.

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#12 Old 04-02-2012, 02:14 PM
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Will you be reducing the aspect ratio to accommodate the 20s? All things being equal, anytime you reduce the sidewall height you reduce the area available for cushioning.

Using extremes to make the point, 22" baloney skins have virtually no room to compress to absorb road irregularities. 16" wheels with 70s will have sidewalls that can compress up to 5 or 6 inches under extreme circumstances.

There is no way low profile tires can offer the same ride quality as their higher-profile counterparts. Sure, the baloney skins will corner better, but that was not the question that was presented.

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#13 Old 04-03-2012, 06:18 PM
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I didn't notice a difference going from 18s to 20s.


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#14 Old 04-26-2012, 10:57 AM
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With 20's, slightly harsher and much heavier. Also, tires much more expensive.
I put super light 18's on my Mo and lost about 11lbs per wheel. I could tell a difference when accelerating and also a slight mpg improvement, ~1-2 mpg. Rotational inertia- physics ftw!

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#15 Old 04-26-2012, 11:11 AM
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Originally Posted by downwind4final View Post
With 20's, slightly harsher and much heavier. Also, tires much more expensive.
I put super light 18's on my Mo and lost about 11lbs per wheel. I could tell a difference when accelerating and also a slight mpg improvement, ~1-2 mpg. Rotational inertia- physics ftw!
I believe this. I think we get to a point of diminishing returns with these huge tires. When I got my first Dodge Intrepid in 1994, it had 16" wheels/tires on it which I thought were huge! Now even subcompacts have tires that size. Aesthetics is winning out over practicality. 20" or 22" wheels/tires cannot be the optimum size for a vehicle like the MO.

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