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      09-03-2009, 12:30 PM   #1
shendrick
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Drives: 08 e90 M3, 05 e46 zhp, 07 X3
Join Date: Jan 2009
Location: Near Boston MA

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Tire Load ratings

The 18" OEM PS2 load/speed ratings are 93Y front and 97Y rear. Tirerack shows 4 size PS2 93Y fitments in the front (1 for BMW, 1 for Mercedes, and 2 others). This suggests a subtle construction difference. Does anyone know if this is true and/or what the difference is? There is only 1 OEM size for the rear that is 97Y. Also, is there any value in selecting a higher load rating for a given size?