Max wrote:
> On Sun, 03 Feb 2008 09:59:40 +0000, hsg@[EMAIL PROTECTED]
graced this
> newsgroup with:
>
>
>> the reason behind this is the move to FWD and the newer train of
thought in
>> fitting different size/width wheels at each end. My new E65 has wider
wheels at
>> the rear than the front I know that BMW isn't the only manufacturers
that does
>> this.
>>
>> The choice is yours but remember if its a new car the chances are the
front
>> tires (tyres) won't fit the rear rims.
>>
>> Hugh
>
>
> Not entirely true. Front wheel drive cars wear out the front tires
> significantly faster than it's rear tires. You'll be replacing the
> front tires at nearly a ratio of 2:1 in comparison to the rear tires.
>
> The reverse holds true for rear wheel cars (of which many cars are
> still made that way).
>
> Rotate them and you'll get longer life out of all four tires.
actually, that's not correct. each time you rotate, the tires have to
scrub to the wear pattern of their new position, so overall average can
be worse. your statement is the common belief based on people tending
to notice tire wear more when not rotated simply because there will
always be one or two wearing more than the others.
> Otherwise, you'll be constantly changing a set of tires.
no, just one or two. tire dealers love to sell sets though.
> And many
> manufacturers don't make the same exact tire every year. You'll
> end up with two different sets of treads and/or manufacturers if you
> constantly only buy one set of tires.
and? what about cars that have different sizes front/rear? as long as
you have decent rubber front and rear, and the same tires on each axle,
you'll be fine.
>
> Also, maybe you mean moving front to back/back to front but you don't
> actually take the tires off the *rims* when you rotate. You merely
> move the entire tire/rim as a single unit.
>
>
> However, as you mentioned, if the front and rear tires are of
> different sizes, the ONLY rotation you can do is left/right and not
> front/back.
which on a performance vehicle is immediately noticeable with inferior
traction. and you can't even do that if the tires have a rotation
direction, which many do.
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