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Old 12-16-2012, 12:35 PM   #9
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Join Date: Oct 2007
Location: SW Michigan
Posts: 802
My Ride: '99 323i & '00 323iT
Originally Posted by metlic53 View Post
i currently have 225/45/17 on my 01 325i. their stock wheels.
My mom just bought a hyundai and in the trunk were two brand new hankook 215/55/17 tires. Well my two rear tires have threads coming out the inside
Those "threads coming out" are the belts, part of the carcass of the tire. Webster defines "carcass" as the worthless remains of something. It is not safe to drive a car without tread, never mind exposed belts.

As to fitment, the Hankooks are a bit narrower and a bit taller than the tires you have. They shouldn't be a problem clearance-wise, esp. since 245/45 was an optional size for the rear. But, if the pic is of your car, you have 8" wheels. 215 is pretty narrow for that width. Check with Hankook about whether that is an approved size for the tires.

And, if you mount new tires on only one axle, they should go on the back. (Don't put the new ones on the front and move the others to the back.) Based on your description, they are certainly better (safer) than what is on there now.

Originally Posted by metlic53 View Post
my front tires have about 60 percent left. front left is continental, front right is a khumo ecsta. (previous owner did that) I see no sense in just throwing the front two tires away and buying a whole set if i can throw those hankooks on the front or back and when their finished i'll buy a new set. is 215 a bigger or smaller tire? i want the smaller on the front otherwise it would look weird but would this tire work for me for now without rubbing and what not?
What is the spare and its condition? This may be an alternate tire to mount.

In most states, the MINIMUM requirement is that the same size tire be mounted on each side of an axle. Just as the MINIMUM requirement is 2/32" of tread depth, but that depth isn't really safe, especially in bad weather, there are other considerations.

It is important that the tires be the similar construction and class: for example, don't mount a hi-perf summer tire with a basic all-season. While it is ideal to have matched rubber, better to have a Bridgestone snow tire on one side and a Michelin snow tire on the other than to have a Dunlop all-season on one side and a Dunlop summer tire on the other.
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