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tire sizes???

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Old 05-24-02, 09:41 AM
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tire sizes???

ok i put new fenders on my car the fiberglass ones you mold on, they make it so i can put 11" tires in the back and 9" in the front, i am having trouble finding rims in this size and how do you read a tires size i have been told like 3 diff ways and no of them seem right, i think these are the tires sizes i need.....

front- 245/45/r17----9.61"??

back - 275/40/r17----11.02"??

what size are these tires? how can you tell?

thanks guys
Old 05-24-02, 09:42 AM
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ohhh and does wany one know were i can find rims that wide....?

thanks
Old 05-24-02, 10:34 AM
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okay 245 is the total width of the tire in millimeters. the 45 is called the aspect ratio. basically this is the hieght of the tire from rim bead to the top of the tread. its done in percentage (don't ask why) so your tire hieght is gonna be 45% of 245. and well you should know what the 17 is. you'll have to check out whatever rims to see what size tires they can hold. most tires shops should have something they can look up.

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Old 05-24-02, 10:35 AM
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To read the tire size- The first number is the tire's cross-section in millimeters. So a 245/45/17 tire is 245 mm at its widest point. The second number is the tire's profile given as a percentage of the tire's width. So in this case, the tire's profile (the height above the rim) is 45% of 245, or 110 mm. The third number is the size rim that the tire takes. So, in inches, a 245/45/17 tire is about 9.8 inches at its widest point, and about 4.4 inches in profile. (Remember that the widest point on a tire is not necessarily the tread width.)
Old 05-24-02, 10:43 AM
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You going to have some pics of the car by the way?
Old 05-24-02, 11:38 AM
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245 = 9.65 inches (tire width)
245/45 = 4.34 (tire profile)
25.68 = (total wheel/tire height)

You need to talk with Rishie (aka ARD T2). Hes the wheel expert and gives forum club members a great discount. Poste a message in the wheels forum or PM him.
Old 05-24-02, 01:35 PM
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thanks you guys..
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