Wheel and Tire

REF: Plus-Sizing Wheels & Tires

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Old Oct 31, 2007 | 09:51 AM
  #1  
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From: I see what you did there.
Default REF: Plus-Sizing Wheels & Tires

Definition:

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Discount Tire &raquo;</TD></TR><TR><TD CLASS="quote">Plus sizing is one of the easiest ways to achieve enhanced performance and improve the appearance of your vehicle. In the example above, a 15x7 wheel with a 205/65R-15 tire is considered the O.E. (original equipment) size. Converting to a plus 1 size would mean increasing the wheel diameter by 1" (16x7.5) and selecting an appropriate tire to fit (225/55R-16). Likewise, moving to a plus 2 fitment would result in a 17x8 wheel and a 245/45R-17 tire. It is important to note that although the wheel diameter is increasing, the overall diameter of the tire remains consistent.



A couple of things happen with the tire to increase performance when we begin to move into plus sizes. First, the tire is wider (section width) and therefore gives us a larger footprint. Second, the sidewall becomes shorter (aspect ratio) and more rigid. The two added together give better lateral stability and increased steering response.</TD></TR></TABLE>

Plus Sizing Charts:





<FONT COLOR="Red">Red</FONT> and <FONT COLOR="Yellow">Yellow</FONT>: Tire size is a poor choice for vehicle. Does not fall within 3% of factory specified wheel diameter.
<FONT COLOR="Green">Green</FONT>: Denotes factory specified/installed wheel diameter.
<FONT COLOR="Cyan">Blue</FONT>: Tire size is a good choice for vehicle. Falls within 3% of factory specified wheel diameter.


All units calculated by: 1010Tires.com Tire Size Calculator
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Old Oct 31, 2007 | 11:34 AM
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Default Re: REF: Plus-Sizing Wheels & Tires (Eran)

Wow, those charts are full of errors.

The first one claims that 185/65-14 is the stock size for the 1989-2000 Civic. It is the stock size for most (not all, but most) 1997-2000 Civics, and for no Civics at all prior to 1996.

The second one claims that 195/55-15 is the stock size for the 1990-2001 Integra. All Integras prior to 1994 came with 195/60-14 tires, as did some of the later year Integras.

There may be slight differences for Canadian versions - 1010tires.com is a Canadian company - but in most cases they got the same sizes as the USIM versions.
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Old Oct 31, 2007 | 01:17 PM
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Default Re: REF: Plus-Sizing Wheels & Tires (nsxtasy)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxtasy &raquo;</TD></TR><TR><TD CLASS="quote">Wow, those charts are full of errors.

The first one claims that 185/65-14 is the stock size for the 1989-2000 Civic. It is the stock size for most (not all, but most) 1997-2000 Civics, and for no Civics at all prior to 1996.

The second one claims that 195/55-15 is the stock size for the 1990-2001 Integra. All Integras prior to 1994 came with 195/60-14 tires, as did some of the later year Integras.

There may be slight differences for Canadian versions - 1010tires.com is a Canadian company - but in most cases they got the same sizes as the USIM versions.
</TD></TR></TABLE>

I wouldn't call two year spans full of errors. The information for the tires sizes listed is correct, and it's easy to make an adjustment for what your stock size is. I included the link so people could calculate their own if it differed from the chart.

I suppose I could create separate charts. What was the stock sizing on the 89-00 civics? I know there were some stock with 14" steel wheels, and I assumed that the tire size was the same.
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Old Oct 31, 2007 | 01:44 PM
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Default Re: REF: Plus-Sizing Wheels & Tires (Eran)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Eran &raquo;</TD></TR><TR><TD CLASS="quote">What was the stock sizing on the 89-00 civics?</TD></TR></TABLE>

Most '89-95 Civics came with 175/70-13 tires. The sportier models came with 185/60-14, which is similar in diameter. I believe some base models came with 165/80-13.

Most '97-00 Civics came with 185/65-14, and a few with 195/55-15, which is similar in diameter.

The '96 Civic was the real "problem child" in that the DX and hatch models had smaller tires like the '89-95, and other Civic models had larger tires like the '97-00.
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Old Nov 1, 2007 | 03:24 PM
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Default Re: REF: Plus-Sizing Wheels & Tires (nsxtasy)

I use this
http://www.miata.net/garage/tirecalc.html
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