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-   -   GC tires - 225/75 vs 245/70 (R16) (https://www.jeepscanada.com/jeep-mailing-list-32/gc-tires-225-75-vs-245-70-r16-31360/)

J Strickland 09-08-2005 01:18 PM

Re: GC tires - 225/75 vs 245/70 (R16)
 
The width is the 225/235/245 number. The 70/75 number is the height of the
sidewall.

A 225/65, 225/70, and 225/75 are all the same width. The difference in these
tires will be the amount of sidewall, and the overall diameter -- the 65
will be the smallest and the 75 will be the tallest.

You might have noticed a loss of traction when you changed from 225s to
235s, because this would represent the width of the tire. A 225/75 and a
235/70 are within 10mm of being the same diameter.

I am a poor judge of what happens in snow, but it's difficult for me to see
where one would notice a difference in 10mm in diameter. I have to suspect
there are tread patterns and other things that enter into the discussion.



"Mike Romain" <romainm@sympatico.ca> wrote in message
news:43203D52.2560BD48@sympatico.ca...
>I will second that. We lost a 'lot' of traction when we went from a 225
> to a 235 while keeping the same profile even. Going to a wider 70
> series adds to the loss.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Bowgus wrote:
>>
>> A consideration ... if you drive in snow, and will be using the 245s they
>> may be too wide. I say this because the 235 is too wide for my XJ in snow
>> ... but the XJ is a lighter vehicle I believe (unibody). I use 225 snow
>> tires ... which unfortunately are due for replacement this coming winter
>> :-(
>>
>> "Phil Schuman" <pschuman_NO_SPAM_ME@interserv.com> wrote in message
>> news:3VMTe.684$au2.349@newssvr17.news.prodigy.com. ..
>> > The Grand Cherokee OE tires are the Wrangler ST with 225/75R16 -
>> > I was wondering if the 245/70R16 sizes cause any probs
>> > with speedometer or front turning clearance under the cowling
>> > or any other considerations on going from the 75 to the 70 ?
>> > It seems like the overall outside tire diameter is the same, but ??
>> >
>> >
>> >




Mike Romain 09-08-2005 02:20 PM

Re: GC tires - 225/75 vs 245/70 (R16)
 
Could be, we went from Hercules 'terra Trac' to BFG AT's and it was a
big disappointment. I believe there was over an inch of actual tread
width difference.

Mike

J Strickland wrote:
>
> The width is the 225/235/245 number. The 70/75 number is the height of the
> sidewall.
>
> A 225/65, 225/70, and 225/75 are all the same width. The difference in these
> tires will be the amount of sidewall, and the overall diameter -- the 65
> will be the smallest and the 75 will be the tallest.
>
> You might have noticed a loss of traction when you changed from 225s to
> 235s, because this would represent the width of the tire. A 225/75 and a
> 235/70 are within 10mm of being the same diameter.
>
> I am a poor judge of what happens in snow, but it's difficult for me to see
> where one would notice a difference in 10mm in diameter. I have to suspect
> there are tread patterns and other things that enter into the discussion.
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:43203D52.2560BD48@sympatico.ca...
> >I will second that. We lost a 'lot' of traction when we went from a 225
> > to a 235 while keeping the same profile even. Going to a wider 70
> > series adds to the loss.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Bowgus wrote:
> >>
> >> A consideration ... if you drive in snow, and will be using the 245s they
> >> may be too wide. I say this because the 235 is too wide for my XJ in snow
> >> ... but the XJ is a lighter vehicle I believe (unibody). I use 225 snow
> >> tires ... which unfortunately are due for replacement this coming winter
> >> :-(
> >>
> >> "Phil Schuman" <pschuman_NO_SPAM_ME@interserv.com> wrote in message
> >> news:3VMTe.684$au2.349@newssvr17.news.prodigy.com. ..
> >> > The Grand Cherokee OE tires are the Wrangler ST with 225/75R16 -
> >> > I was wondering if the 245/70R16 sizes cause any probs
> >> > with speedometer or front turning clearance under the cowling
> >> > or any other considerations on going from the 75 to the 70 ?
> >> > It seems like the overall outside tire diameter is the same, but ??
> >> >
> >> >
> >> >


Mike Romain 09-08-2005 02:20 PM

Re: GC tires - 225/75 vs 245/70 (R16)
 
Could be, we went from Hercules 'terra Trac' to BFG AT's and it was a
big disappointment. I believe there was over an inch of actual tread
width difference.

Mike

J Strickland wrote:
>
> The width is the 225/235/245 number. The 70/75 number is the height of the
> sidewall.
>
> A 225/65, 225/70, and 225/75 are all the same width. The difference in these
> tires will be the amount of sidewall, and the overall diameter -- the 65
> will be the smallest and the 75 will be the tallest.
>
> You might have noticed a loss of traction when you changed from 225s to
> 235s, because this would represent the width of the tire. A 225/75 and a
> 235/70 are within 10mm of being the same diameter.
>
> I am a poor judge of what happens in snow, but it's difficult for me to see
> where one would notice a difference in 10mm in diameter. I have to suspect
> there are tread patterns and other things that enter into the discussion.
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:43203D52.2560BD48@sympatico.ca...
> >I will second that. We lost a 'lot' of traction when we went from a 225
> > to a 235 while keeping the same profile even. Going to a wider 70
> > series adds to the loss.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Bowgus wrote:
> >>
> >> A consideration ... if you drive in snow, and will be using the 245s they
> >> may be too wide. I say this because the 235 is too wide for my XJ in snow
> >> ... but the XJ is a lighter vehicle I believe (unibody). I use 225 snow
> >> tires ... which unfortunately are due for replacement this coming winter
> >> :-(
> >>
> >> "Phil Schuman" <pschuman_NO_SPAM_ME@interserv.com> wrote in message
> >> news:3VMTe.684$au2.349@newssvr17.news.prodigy.com. ..
> >> > The Grand Cherokee OE tires are the Wrangler ST with 225/75R16 -
> >> > I was wondering if the 245/70R16 sizes cause any probs
> >> > with speedometer or front turning clearance under the cowling
> >> > or any other considerations on going from the 75 to the 70 ?
> >> > It seems like the overall outside tire diameter is the same, but ??
> >> >
> >> >
> >> >


Mike Romain 09-08-2005 02:20 PM

Re: GC tires - 225/75 vs 245/70 (R16)
 
Could be, we went from Hercules 'terra Trac' to BFG AT's and it was a
big disappointment. I believe there was over an inch of actual tread
width difference.

Mike

J Strickland wrote:
>
> The width is the 225/235/245 number. The 70/75 number is the height of the
> sidewall.
>
> A 225/65, 225/70, and 225/75 are all the same width. The difference in these
> tires will be the amount of sidewall, and the overall diameter -- the 65
> will be the smallest and the 75 will be the tallest.
>
> You might have noticed a loss of traction when you changed from 225s to
> 235s, because this would represent the width of the tire. A 225/75 and a
> 235/70 are within 10mm of being the same diameter.
>
> I am a poor judge of what happens in snow, but it's difficult for me to see
> where one would notice a difference in 10mm in diameter. I have to suspect
> there are tread patterns and other things that enter into the discussion.
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:43203D52.2560BD48@sympatico.ca...
> >I will second that. We lost a 'lot' of traction when we went from a 225
> > to a 235 while keeping the same profile even. Going to a wider 70
> > series adds to the loss.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Bowgus wrote:
> >>
> >> A consideration ... if you drive in snow, and will be using the 245s they
> >> may be too wide. I say this because the 235 is too wide for my XJ in snow
> >> ... but the XJ is a lighter vehicle I believe (unibody). I use 225 snow
> >> tires ... which unfortunately are due for replacement this coming winter
> >> :-(
> >>
> >> "Phil Schuman" <pschuman_NO_SPAM_ME@interserv.com> wrote in message
> >> news:3VMTe.684$au2.349@newssvr17.news.prodigy.com. ..
> >> > The Grand Cherokee OE tires are the Wrangler ST with 225/75R16 -
> >> > I was wondering if the 245/70R16 sizes cause any probs
> >> > with speedometer or front turning clearance under the cowling
> >> > or any other considerations on going from the 75 to the 70 ?
> >> > It seems like the overall outside tire diameter is the same, but ??
> >> >
> >> >
> >> >


Mike Romain 09-08-2005 02:20 PM

Re: GC tires - 225/75 vs 245/70 (R16)
 
Could be, we went from Hercules 'terra Trac' to BFG AT's and it was a
big disappointment. I believe there was over an inch of actual tread
width difference.

Mike

J Strickland wrote:
>
> The width is the 225/235/245 number. The 70/75 number is the height of the
> sidewall.
>
> A 225/65, 225/70, and 225/75 are all the same width. The difference in these
> tires will be the amount of sidewall, and the overall diameter -- the 65
> will be the smallest and the 75 will be the tallest.
>
> You might have noticed a loss of traction when you changed from 225s to
> 235s, because this would represent the width of the tire. A 225/75 and a
> 235/70 are within 10mm of being the same diameter.
>
> I am a poor judge of what happens in snow, but it's difficult for me to see
> where one would notice a difference in 10mm in diameter. I have to suspect
> there are tread patterns and other things that enter into the discussion.
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:43203D52.2560BD48@sympatico.ca...
> >I will second that. We lost a 'lot' of traction when we went from a 225
> > to a 235 while keeping the same profile even. Going to a wider 70
> > series adds to the loss.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Bowgus wrote:
> >>
> >> A consideration ... if you drive in snow, and will be using the 245s they
> >> may be too wide. I say this because the 235 is too wide for my XJ in snow
> >> ... but the XJ is a lighter vehicle I believe (unibody). I use 225 snow
> >> tires ... which unfortunately are due for replacement this coming winter
> >> :-(
> >>
> >> "Phil Schuman" <pschuman_NO_SPAM_ME@interserv.com> wrote in message
> >> news:3VMTe.684$au2.349@newssvr17.news.prodigy.com. ..
> >> > The Grand Cherokee OE tires are the Wrangler ST with 225/75R16 -
> >> > I was wondering if the 245/70R16 sizes cause any probs
> >> > with speedometer or front turning clearance under the cowling
> >> > or any other considerations on going from the 75 to the 70 ?
> >> > It seems like the overall outside tire diameter is the same, but ??
> >> >
> >> >
> >> >


J Strickland 09-08-2005 03:06 PM

Re: GC tires - 225/75 vs 245/70 (R16)
 
Not if the change was from 225 to 235. These numbers represent the tread
width in mm, and 10mm is the functional equivelent of 3/8".

Now, there is some misunderstanding (at least on my part) of just exactly
where they measure 225 or 235, and the actual tread blocks being square on
one tire and rounded off on the other might play a role in your perception
of an inch difference, but the actual difference is 10mm. Your point being
that you are looking at the tread patch on the ground is not lost on me ...





"Mike Romain" <romainm@sympatico.ca> wrote in message
news:432080F0.DECA6CD5@sympatico.ca...
> Could be, we went from Hercules 'terra Trac' to BFG AT's and it was a
> big disappointment. I believe there was over an inch of actual tread
> width difference.
>
> Mike
>
> J Strickland wrote:
>>
>> The width is the 225/235/245 number. The 70/75 number is the height of
>> the
>> sidewall.
>>
>> A 225/65, 225/70, and 225/75 are all the same width. The difference in
>> these
>> tires will be the amount of sidewall, and the overall diameter -- the 65
>> will be the smallest and the 75 will be the tallest.
>>
>> You might have noticed a loss of traction when you changed from 225s to
>> 235s, because this would represent the width of the tire. A 225/75 and a
>> 235/70 are within 10mm of being the same diameter.
>>
>> I am a poor judge of what happens in snow, but it's difficult for me to
>> see
>> where one would notice a difference in 10mm in diameter. I have to
>> suspect
>> there are tread patterns and other things that enter into the discussion.
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:43203D52.2560BD48@sympatico.ca...
>> >I will second that. We lost a 'lot' of traction when we went from a 225
>> > to a 235 while keeping the same profile even. Going to a wider 70
>> > series adds to the loss.
>> >
>> > Mike
>> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > 88 Cherokee 235 BFG AT's
>> >
>> > Bowgus wrote:
>> >>
>> >> A consideration ... if you drive in snow, and will be using the 245s
>> >> they
>> >> may be too wide. I say this because the 235 is too wide for my XJ in
>> >> snow
>> >> ... but the XJ is a lighter vehicle I believe (unibody). I use 225
>> >> snow
>> >> tires ... which unfortunately are due for replacement this coming
>> >> winter
>> >> :-(
>> >>
>> >> "Phil Schuman" <pschuman_NO_SPAM_ME@interserv.com> wrote in message
>> >> news:3VMTe.684$au2.349@newssvr17.news.prodigy.com. ..
>> >> > The Grand Cherokee OE tires are the Wrangler ST with 225/75R16 -
>> >> > I was wondering if the 245/70R16 sizes cause any probs
>> >> > with speedometer or front turning clearance under the cowling
>> >> > or any other considerations on going from the 75 to the 70 ?
>> >> > It seems like the overall outside tire diameter is the same, but ??
>> >> >
>> >> >
>> >> >




J Strickland 09-08-2005 03:06 PM

Re: GC tires - 225/75 vs 245/70 (R16)
 
Not if the change was from 225 to 235. These numbers represent the tread
width in mm, and 10mm is the functional equivelent of 3/8".

Now, there is some misunderstanding (at least on my part) of just exactly
where they measure 225 or 235, and the actual tread blocks being square on
one tire and rounded off on the other might play a role in your perception
of an inch difference, but the actual difference is 10mm. Your point being
that you are looking at the tread patch on the ground is not lost on me ...





"Mike Romain" <romainm@sympatico.ca> wrote in message
news:432080F0.DECA6CD5@sympatico.ca...
> Could be, we went from Hercules 'terra Trac' to BFG AT's and it was a
> big disappointment. I believe there was over an inch of actual tread
> width difference.
>
> Mike
>
> J Strickland wrote:
>>
>> The width is the 225/235/245 number. The 70/75 number is the height of
>> the
>> sidewall.
>>
>> A 225/65, 225/70, and 225/75 are all the same width. The difference in
>> these
>> tires will be the amount of sidewall, and the overall diameter -- the 65
>> will be the smallest and the 75 will be the tallest.
>>
>> You might have noticed a loss of traction when you changed from 225s to
>> 235s, because this would represent the width of the tire. A 225/75 and a
>> 235/70 are within 10mm of being the same diameter.
>>
>> I am a poor judge of what happens in snow, but it's difficult for me to
>> see
>> where one would notice a difference in 10mm in diameter. I have to
>> suspect
>> there are tread patterns and other things that enter into the discussion.
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:43203D52.2560BD48@sympatico.ca...
>> >I will second that. We lost a 'lot' of traction when we went from a 225
>> > to a 235 while keeping the same profile even. Going to a wider 70
>> > series adds to the loss.
>> >
>> > Mike
>> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > 88 Cherokee 235 BFG AT's
>> >
>> > Bowgus wrote:
>> >>
>> >> A consideration ... if you drive in snow, and will be using the 245s
>> >> they
>> >> may be too wide. I say this because the 235 is too wide for my XJ in
>> >> snow
>> >> ... but the XJ is a lighter vehicle I believe (unibody). I use 225
>> >> snow
>> >> tires ... which unfortunately are due for replacement this coming
>> >> winter
>> >> :-(
>> >>
>> >> "Phil Schuman" <pschuman_NO_SPAM_ME@interserv.com> wrote in message
>> >> news:3VMTe.684$au2.349@newssvr17.news.prodigy.com. ..
>> >> > The Grand Cherokee OE tires are the Wrangler ST with 225/75R16 -
>> >> > I was wondering if the 245/70R16 sizes cause any probs
>> >> > with speedometer or front turning clearance under the cowling
>> >> > or any other considerations on going from the 75 to the 70 ?
>> >> > It seems like the overall outside tire diameter is the same, but ??
>> >> >
>> >> >
>> >> >




J Strickland 09-08-2005 03:06 PM

Re: GC tires - 225/75 vs 245/70 (R16)
 
Not if the change was from 225 to 235. These numbers represent the tread
width in mm, and 10mm is the functional equivelent of 3/8".

Now, there is some misunderstanding (at least on my part) of just exactly
where they measure 225 or 235, and the actual tread blocks being square on
one tire and rounded off on the other might play a role in your perception
of an inch difference, but the actual difference is 10mm. Your point being
that you are looking at the tread patch on the ground is not lost on me ...





"Mike Romain" <romainm@sympatico.ca> wrote in message
news:432080F0.DECA6CD5@sympatico.ca...
> Could be, we went from Hercules 'terra Trac' to BFG AT's and it was a
> big disappointment. I believe there was over an inch of actual tread
> width difference.
>
> Mike
>
> J Strickland wrote:
>>
>> The width is the 225/235/245 number. The 70/75 number is the height of
>> the
>> sidewall.
>>
>> A 225/65, 225/70, and 225/75 are all the same width. The difference in
>> these
>> tires will be the amount of sidewall, and the overall diameter -- the 65
>> will be the smallest and the 75 will be the tallest.
>>
>> You might have noticed a loss of traction when you changed from 225s to
>> 235s, because this would represent the width of the tire. A 225/75 and a
>> 235/70 are within 10mm of being the same diameter.
>>
>> I am a poor judge of what happens in snow, but it's difficult for me to
>> see
>> where one would notice a difference in 10mm in diameter. I have to
>> suspect
>> there are tread patterns and other things that enter into the discussion.
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:43203D52.2560BD48@sympatico.ca...
>> >I will second that. We lost a 'lot' of traction when we went from a 225
>> > to a 235 while keeping the same profile even. Going to a wider 70
>> > series adds to the loss.
>> >
>> > Mike
>> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > 88 Cherokee 235 BFG AT's
>> >
>> > Bowgus wrote:
>> >>
>> >> A consideration ... if you drive in snow, and will be using the 245s
>> >> they
>> >> may be too wide. I say this because the 235 is too wide for my XJ in
>> >> snow
>> >> ... but the XJ is a lighter vehicle I believe (unibody). I use 225
>> >> snow
>> >> tires ... which unfortunately are due for replacement this coming
>> >> winter
>> >> :-(
>> >>
>> >> "Phil Schuman" <pschuman_NO_SPAM_ME@interserv.com> wrote in message
>> >> news:3VMTe.684$au2.349@newssvr17.news.prodigy.com. ..
>> >> > The Grand Cherokee OE tires are the Wrangler ST with 225/75R16 -
>> >> > I was wondering if the 245/70R16 sizes cause any probs
>> >> > with speedometer or front turning clearance under the cowling
>> >> > or any other considerations on going from the 75 to the 70 ?
>> >> > It seems like the overall outside tire diameter is the same, but ??
>> >> >
>> >> >
>> >> >




J Strickland 09-08-2005 03:06 PM

Re: GC tires - 225/75 vs 245/70 (R16)
 
Not if the change was from 225 to 235. These numbers represent the tread
width in mm, and 10mm is the functional equivelent of 3/8".

Now, there is some misunderstanding (at least on my part) of just exactly
where they measure 225 or 235, and the actual tread blocks being square on
one tire and rounded off on the other might play a role in your perception
of an inch difference, but the actual difference is 10mm. Your point being
that you are looking at the tread patch on the ground is not lost on me ...





"Mike Romain" <romainm@sympatico.ca> wrote in message
news:432080F0.DECA6CD5@sympatico.ca...
> Could be, we went from Hercules 'terra Trac' to BFG AT's and it was a
> big disappointment. I believe there was over an inch of actual tread
> width difference.
>
> Mike
>
> J Strickland wrote:
>>
>> The width is the 225/235/245 number. The 70/75 number is the height of
>> the
>> sidewall.
>>
>> A 225/65, 225/70, and 225/75 are all the same width. The difference in
>> these
>> tires will be the amount of sidewall, and the overall diameter -- the 65
>> will be the smallest and the 75 will be the tallest.
>>
>> You might have noticed a loss of traction when you changed from 225s to
>> 235s, because this would represent the width of the tire. A 225/75 and a
>> 235/70 are within 10mm of being the same diameter.
>>
>> I am a poor judge of what happens in snow, but it's difficult for me to
>> see
>> where one would notice a difference in 10mm in diameter. I have to
>> suspect
>> there are tread patterns and other things that enter into the discussion.
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:43203D52.2560BD48@sympatico.ca...
>> >I will second that. We lost a 'lot' of traction when we went from a 225
>> > to a 235 while keeping the same profile even. Going to a wider 70
>> > series adds to the loss.
>> >
>> > Mike
>> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > 88 Cherokee 235 BFG AT's
>> >
>> > Bowgus wrote:
>> >>
>> >> A consideration ... if you drive in snow, and will be using the 245s
>> >> they
>> >> may be too wide. I say this because the 235 is too wide for my XJ in
>> >> snow
>> >> ... but the XJ is a lighter vehicle I believe (unibody). I use 225
>> >> snow
>> >> tires ... which unfortunately are due for replacement this coming
>> >> winter
>> >> :-(
>> >>
>> >> "Phil Schuman" <pschuman_NO_SPAM_ME@interserv.com> wrote in message
>> >> news:3VMTe.684$au2.349@newssvr17.news.prodigy.com. ..
>> >> > The Grand Cherokee OE tires are the Wrangler ST with 225/75R16 -
>> >> > I was wondering if the 245/70R16 sizes cause any probs
>> >> > with speedometer or front turning clearance under the cowling
>> >> > or any other considerations on going from the 75 to the 70 ?
>> >> > It seems like the overall outside tire diameter is the same, but ??
>> >> >
>> >> >
>> >> >




Mike Romain 09-08-2005 03:42 PM

Re: GC tires - 225/75 vs 245/70 (R16)
 
The 'book' width measurements are not at the tread, they are at the
sidewall.

When I went from a 31x10.5" mud to a 33x9.5" mud, the tread on the
ground went from 10.25" to 7.5". I got a 'radical' increase in
traction.

Mike

J Strickland wrote:
>
> Not if the change was from 225 to 235. These numbers represent the tread
> width in mm, and 10mm is the functional equivelent of 3/8".
>
> Now, there is some misunderstanding (at least on my part) of just exactly
> where they measure 225 or 235, and the actual tread blocks being square on
> one tire and rounded off on the other might play a role in your perception
> of an inch difference, but the actual difference is 10mm. Your point being
> that you are looking at the tread patch on the ground is not lost on me ...
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:432080F0.DECA6CD5@sympatico.ca...
> > Could be, we went from Hercules 'terra Trac' to BFG AT's and it was a
> > big disappointment. I believe there was over an inch of actual tread
> > width difference.
> >
> > Mike
> >
> > J Strickland wrote:
> >>
> >> The width is the 225/235/245 number. The 70/75 number is the height of
> >> the
> >> sidewall.
> >>
> >> A 225/65, 225/70, and 225/75 are all the same width. The difference in
> >> these
> >> tires will be the amount of sidewall, and the overall diameter -- the 65
> >> will be the smallest and the 75 will be the tallest.
> >>
> >> You might have noticed a loss of traction when you changed from 225s to
> >> 235s, because this would represent the width of the tire. A 225/75 and a
> >> 235/70 are within 10mm of being the same diameter.
> >>
> >> I am a poor judge of what happens in snow, but it's difficult for me to
> >> see
> >> where one would notice a difference in 10mm in diameter. I have to
> >> suspect
> >> there are tread patterns and other things that enter into the discussion.
> >>
> >> "Mike Romain" <romainm@sympatico.ca> wrote in message
> >> news:43203D52.2560BD48@sympatico.ca...
> >> >I will second that. We lost a 'lot' of traction when we went from a 225
> >> > to a 235 while keeping the same profile even. Going to a wider 70
> >> > series adds to the loss.
> >> >
> >> > Mike
> >> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >> > 88 Cherokee 235 BFG AT's
> >> >
> >> > Bowgus wrote:
> >> >>
> >> >> A consideration ... if you drive in snow, and will be using the 245s
> >> >> they
> >> >> may be too wide. I say this because the 235 is too wide for my XJ in
> >> >> snow
> >> >> ... but the XJ is a lighter vehicle I believe (unibody). I use 225
> >> >> snow
> >> >> tires ... which unfortunately are due for replacement this coming
> >> >> winter
> >> >> :-(
> >> >>
> >> >> "Phil Schuman" <pschuman_NO_SPAM_ME@interserv.com> wrote in message
> >> >> news:3VMTe.684$au2.349@newssvr17.news.prodigy.com. ..
> >> >> > The Grand Cherokee OE tires are the Wrangler ST with 225/75R16 -
> >> >> > I was wondering if the 245/70R16 sizes cause any probs
> >> >> > with speedometer or front turning clearance under the cowling
> >> >> > or any other considerations on going from the 75 to the 70 ?
> >> >> > It seems like the overall outside tire diameter is the same, but ??
> >> >> >
> >> >> >
> >> >> >



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