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  #1 (permalink)  
Old 27 Jan 2011, 04:24 pm
Clete
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Default 195/65/15 to 215/60/15

I have been offered a good set of 215/60/15 winters. Can I use them on my
2000 Accord SE that runs 195/65/15. Thanks


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  #2 (permalink)  
Old 27 Jan 2011, 05:34 pm
Tegger
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Default Re: 195/65/15 to 215/60/15

"Clete" <mleclair@accesswave.ca> wrote in
news:ihsrau$dnb$1@speranza.aioe.org:

> I have been offered a good set of 215/60/15 winters. Can I use them on
> my 2000 Accord SE that runs 195/65/15. Thanks
>
>
>



The new size will be just fine as far as the speedometer goes (speedo will
read about 2% too slow), but the new tires are 3/4" wider. That's NOT a
good thing in winter, and will negate some of the advantage of the winter
tread.


--
Tegger
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  #3 (permalink)  
Old 27 Jan 2011, 06:48 pm
Jim Yanik
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Default Re: 195/65/15 to 215/60/15

"Clete" <mleclair@accesswave.ca> wrote in
news:ihsrau$dnb$1@speranza.aioe.org:

> I have been offered a good set of 215/60/15 winters. Can I use them on
> my 2000 Accord SE that runs 195/65/15. Thanks
>
>
>


yeah,but your speedometer/odometer will be off,not reading accurately.
Not by much,though. it will read higher than actual speed,and odometer
miles will be less,because of the slightly smaller circumference.
I suppose you could measure them both to find the difference,and calculate
the error.

you might have wheelwell clearance problems with the wider tread.

--
Jim Yanik
jyanik
at
localnet
dot com
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  #4 (permalink)  
Old 28 Jan 2011, 01:29 pm
Dave Dodson
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Default Re: 195/65/15 to 215/60/15

"Clete" <mleclair@accesswave.ca> wrote in
news:ihsrau$dnb$1@speranza.aioe.org:

> I have been offered a good set of 215/60/15 winters. Can I use them on
> my 2000 Accord SE that runs 195/65/15. Thanks
>
>


Sure you can. The difference in circumference is about 1/2 inch and as
Tegger noted...your speedo reading will be off only a miniscule amount. The
difference in height is about 3/10 of an inch so clearance in that plane
shouldn't be a concern. The difference in width is about ,8 of an inch.
However, as Tegger pointed out, the wider tire will not perform as well in
winter conditions as the narrower tire, given all other factors are
comparable.

DaveD
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  #5 (permalink)  
Old 29 Jan 2011, 11:28 am
Jim Yanik
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Default Re: 195/65/15 to 215/60/15

Jim Yanik <jyanik@abuse.gov> wrote in
news:Xns9E7AC98F816EEjyaniklocalnetcom@216.168.3.4 4:

> "Clete" <mleclair@accesswave.ca> wrote in
> news:ihsrau$dnb$1@speranza.aioe.org:
>
>> I have been offered a good set of 215/60/15 winters. Can I use them
>> on my 2000 Accord SE that runs 195/65/15. Thanks
>>
>>
>>

>
> yeah,but your speedometer/odometer will be off,not reading accurately.
> Not by much,though. it will read higher than actual speed,and odometer
> miles will be less,because of the slightly smaller circumference.
> I suppose you could measure them both to find the difference,and
> calculate the error.
>
> you might have wheelwell clearance problems with the wider tread.
>


that should be "actual miles driven will be less than the odometer
indicates".

--
Jim Yanik
jyanik
at
localnet
dot com
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  #6 (permalink)  
Old 29 Jan 2011, 12:37 pm
Paul
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Default Re: 195/65/15 to 215/60/15

Tegger wrote:

> "Clete" <mleclair@accesswave.ca> wrote in
> news:ihsrau$dnb$1@speranza.aioe.org:
>
>> I have been offered a good set of 215/60/15 winters. Can I use them on
>> my 2000 Accord SE that runs 195/65/15. Thanks

>
>
> The new size will be just fine as far as the speedometer goes
> (speedo will read about 2% too slow)....


Actually, 0.7% too slow. The circumference of a tire is based on its
radius, not its sidewall alone. At 60mph, the nominal difference would be
around 0.4mph.

Recall that the rim is 15", so its radius is 7.5" or 190.5mm.
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  #7 (permalink)  
Old 30 Jan 2011, 10:58 am
Tegger
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Default Re: 195/65/15 to 215/60/15

Paul <no@dress.invalid> wrote in
news:ii1mog$gpd$1@news.eternal-september.org:

> Tegger wrote:
>
>> "Clete" <mleclair@accesswave.ca> wrote in
>> news:ihsrau$dnb$1@speranza.aioe.org:
>>
>>> I have been offered a good set of 215/60/15 winters. Can I use them
>>> on my 2000 Accord SE that runs 195/65/15. Thanks

>>
>>
>> The new size will be just fine as far as the speedometer goes
>> (speedo will read about 2% too slow)....

>
> Actually, 0.7% too slow. The circumference of a tire is based on its
> radius, not its sidewall alone. At 60mph, the nominal difference
> would be around 0.4mph.
>
> Recall that the rim is 15", so its radius is 7.5" or 190.5mm.





Yep. My bad, as they say these days. I must have hit the wrong keys on my
calculator, then not bothered to double-check.

The correct arithmetic:

(15" wheel = 381mm diameter.)

215 * .60 * 2 = 258mm
195 * .65 * 2 = 253.5mm

258 + 381 = 639mm tire diameter
639 * 3.14159 = 2007.4mm rolling circumference

253.5 + 381 = 634.5mm tire diameter
634.5 * 3.14159 = 1993.3mm rolling circumference

2007.4 / 1993.3 = 100.7%

Therefore, the 215 is 0.7% larger than the 195.

As far as the speedometer and odometer go, the tires are the same.

--
Tegger
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  #8 (permalink)  
Old 31 Jan 2011, 01:53 am
Dave Dodson
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Default Re: 195/65/15 to 215/60/15

Paul <no@dress.invalid> wrote in
news:ii1mog$gpd$1@news.eternal-september.org:

> Tegger wrote:
>
>> "Clete" <mleclair@accesswave.ca> wrote in
>> news:ihsrau$dnb$1@speranza.aioe.org:
>>
>>> I have been offered a good set of 215/60/15 winters. Can I use them
>>> on my 2000 Accord SE that runs 195/65/15. Thanks

>>
>>
>> The new size will be just fine as far as the speedometer goes
>> (speedo will read about 2% too slow)....

>
> Actually, 0.7% too slow. The circumference of a tire is based on its
> radius, not its sidewall alone. At 60mph, the nominal difference
> would be around 0.4mph.
>
> Recall that the rim is 15", so its radius is 7.5" or 190.5mm.


But your not dealing with the circumference of the wheel. You have to
figure in the tire as well. As I posted earlier, the difference in
circumference of the two tires was about 1/2 inch.

DaveD
>


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  #9 (permalink)  
Old 31 Jan 2011, 06:29 am
Tegger
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Posts: n/a
Default Re: 195/65/15 to 215/60/15

Dave Dodson <dave6985@hotmail.com> wrote in news:Xns9E7DE8F1781CFDaveD@
209.112.128.246:

> As I posted earlier, the difference in
> circumference of the two tires was about 1/2 inch.
>



Which is an insignificant 0.7% on the speedometer, as Paul pointed out..


--
Tegger
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  #10 (permalink)  
Old 31 Jan 2011, 06:40 am
Clete
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Posts: n/a
Default Re: 195/65/15 to 215/60/15

On 28 Jan 2011 10:29:44 -0900, Dave Dodson <dave6985@hotmail.com>
wrote:

>"Clete" <mleclair@accesswave.ca> wrote in
>news:ihsrau$dnb$1@speranza.aioe.org:
>
>> I have been offered a good set of 215/60/15 winters. Can I use them on
>> my 2000 Accord SE that runs 195/65/15. Thanks
>>
>>

>
>Sure you can. The difference in circumference is about 1/2 inch and as
>Tegger noted...your speedo reading will be off only a miniscule amount. The
>difference in height is about 3/10 of an inch so clearance in that plane
>shouldn't be a concern. The difference in width is about ,8 of an inch.
>However, as Tegger pointed out, the wider tire will not perform as well in
>winter conditions as the narrower tire, given all other factors are
>comparable.
>
>DaveD



Thanks to all.
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