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Jimmy Stang · 10-25-2011, 01:03 PM

I am trying to pawn off my old winter tires and rims to either my sister or my parents, who both have cars with a 4x100 bolt pattern and 14 inch wheels, which is perfect. The tire size, however, is 185/60r14 vs. 195/65r14. According to this tire size calculator (http://www.miata.net/garage/tirecalc.html), the difference in radius would be about 0.2 inches, and the speedometre would be 2.1% off.

Does anyone know if this is a reasonable difference? Any reason why this wouldn't work? What is typically a reasonable difference: 1%, 2%, 5%, etc?

10-25-2011, 01:03 PM	#402
Jimmy Stang Franchise Player Join Date: Sep 2008 Location: Calgary Exp:	I am trying to pawn off my old winter tires and rims to either my sister or my parents, who both have cars with a 4x100 bolt pattern and 14 inch wheels, which is perfect. The tire size, however, is 185/60r14 vs. 195/65r14. According to this tire size calculator (http://www.miata.net/garage/tirecalc.html), the difference in radius would be about 0.2 inches, and the speedometre would be 2.1% off. Does anyone know if this is a reasonable difference? Any reason why this wouldn't work? What is typically a reasonable difference: 1%, 2%, 5%, etc?