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Old 08-25-2008, 07:14 AM   #2
Topless
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Join Date: Nov 2006
Location: Southern ID
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Good question. A smaller diameter on the rear should not affect basic handling and balance but may confuse the computer controlled ABS and PSM. The rule with a 986 is to keep diameter within .3" difference front to rear. I am not sure if it is the same on a 987. Does your owners manual address this?
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