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Discussion Starter · #1 ·
purchased my carens II 06 from kia dealer who put 205 55 r15 on the car ive had tyres of the same size fitted to the car since purchase but recently had to fit new alloys as the steels were damaged by previous owner.
The tyres fitted are 205 60 r15 as it states on the door info plate as it also states 195 60 r15 can be used
anyone come up with a good reason for using 55s instead of 60s.
would 55s effect the cars performance to the 60s ie larger size gearing up the engine and need for use of more revs fuel etc
as the current tyres now need replacing Im at a quandry wether to select 60s or 55s
 

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Personally (& for insurance purposes) I'd select whatever the handbook/door plate says, safer in the event of a knock.
 

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Discussion Starter · #4 ·
im not sure if its a combination of the work done on the turbo back in june.
The change of tyre size, One or both but I do now seem to use more fuel than previously.
I have noticed I have to use more revs to get up to speedinstead of cruising at 70 using approx 2200rpm im now using between 2500-2600rpm. I did wonder if that was a response to gearing up .
 

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Discussion Starter · #5 ·
The number 165 relates to the Tyre Width


It is the width of the tyre in millimetres.
The number 65 relates to the Tyre Profile
It is the height of the tyre sidewall as a percentage of the width. This is also known as the aspect ratio.



The Letter R relates to Radial Contruction



<div ="spacer_10">The number 14 relates to the Tyre's Size



It is the diameter of the tyre's inner rim in inches


<div ="spacer_10">The number 79 relates to the Tyre's Load Rating



This is the Load Capacity of the Tyre


<div ="spacer_10">The Letter T relates to the Tyre's Speed Rating Value



This indicates the maximum speed for the actual tyre at full loadThe E4 Mark


This is to display that the tyre has been tested as high quality by the European Regulatory Authories.
 

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Discussion Starter · #6 ·
just found this very interesting from a different forum --

<div id="post_message_87869">Theoretically, getting a taller tire would
hurt your FE if you do alot of in town driving. Like said above, you are
adding more weight on all corners which strains the car more off the
lights. However, a 205/60/16 and 205/65/16 are so close, the weight is
almost a moot point. Both weigh 20 pounds (average, depends on composite
and build)



Now, if you drive a lot on the highway, like those big rigs, it will
help you alittle. A 205/60/16 has a 24.7" total diameter which equals
840 rotations per mile. A 205/65/16 has a 25.4" total diameter which
equals 818 rotations per mile. That would lower the rpms on your
transmission and should give a small FE gain, but probably not much at
all...



But you probably do alot of stop and go, so I dont think the little fe
gain would compensate the price of new tires..unless you need new ones
anyways...









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