I have XCA 205/75R14's. These are a tall sidewall tire, and are in fact,
about 1/2 inch or slightly greater  in diameter than the typical tire
for 14 inch rims. The tire is definitely heavier than the MXT
205/70R14's that I had before. For what ever power loss due to diameter
increase, is is only a schosh, and not really noticeable for my
driving., but then I'm not climbing mountains with a load either.

Regards,

John Rodgers
88 GL Driver x2

jeff livingston-carr wrote:

>Hi All,
>Does anyone think switching from 14" to 15" wheels will cause a significant
>loss of power as perceived by the driver?  I've heard that the bigger tires
>and wheels may slow the vehicle.
>
>Thanks.
>
>Jeff
>1991 MV
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