Questions re Increasing tire size

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DanJetta
Posts: 478
Joined: Wed Oct 03, 2012 6:47 am

Questions re Increasing tire size

Postby DanJetta » Mon Feb 11, 2013 3:07 pm

Hey guys,

A couple of questions for the guys who have increased tire size... I'm thinking about increasing my tire wall size in hopes that the ride will not be as harsh, so:

1. Have you noticed a difference in ride quality when going up in tire size?
2. Does increased tire size affect speedometer accuracy?


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NmexMAX
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Joined: Mon Oct 11, 2010 2:35 pm
Location: Northern New Mexico

Postby NmexMAX » Tue Feb 12, 2013 9:24 am

MPH will be off slightly, depending on what size you actually go with.

http://www.1010tires.com/TireSizeCalculator.asp
http://www.miata.net/garage/tirecalc.html

I didn't think the ride was harsh stock, but then again, I'm coming from a Maxima with 245-40 18's and a Genesis Coupe with 225-40-18's, so the stock tires on the Pathfinder were pillows, and the new ones are even softer.

Seems like a popular size on here is 285-65-18's. Or other thinner variants in the 16,17 and 18" range that are taller than stock.
Last edited by NmexMAX on Fri Feb 22, 2013 9:35 pm, edited 1 time in total.

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NVSteve
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Joined: Thu Feb 01, 2007 11:27 am
Location: Salt Lake City

Re: Questions re Increasing tire size

Postby NVSteve » Tue Feb 12, 2013 9:41 am

DanJetta wrote:Hey guys,

A couple of questions for the guys who have increased tire size... I'm thinking about increasing my tire wall size in hopes that the ride will not be as harsh, so:

1. Have you noticed a difference in ride quality when going up in tire size?
What size wheels and tires do you have now? On some wheels, there won't be much of a difference (20" wheels, for example).
2. Does increased tire size affect speedometer accuracy?
Depends. It will most likely be noticeable to your "perceived" mpg calculations, but going up a size will likely get your speedo working correctly, as opposed to being off before.

DanJetta
Posts: 478
Joined: Wed Oct 03, 2012 6:47 am

Postby DanJetta » Fri Feb 22, 2013 1:41 pm

Just wanted to say thanks for those links. They're great and told me exactly what I needed to know.

Really appreciate it!


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