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Old 04-04-2013, 12:54 PM   #82 (permalink)
sidecar
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Quote:
Originally Posted by johnathanf1lm View Post
I"m sure this was mentioned but a Prius has a CVT which putting larger tires doesn't do anything besides add weight since the CVT adjust the gear ratio constantly. Now if the Prius had a fixed geared trans like most automatics this would add weight but would make the gears taller. Long story short wrong car to test and prove the larger tire theory.
we know all about that, there are hard working guys on the Prius forum that track all these features of potential LRR tyres in a database and account for correct rolling diameters.

Incidentally the US fit tyre is too small by a few percent. The 195/60-15 offers better diameter options, from memory 844 revolutions per mile. There are 17" options that fit this profile, and these are the ones recommended.
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