dhanson865
Well-known member
You can correct this by buying different tires when the time comes.
If tirerack's data is correct and my interpretation of the situation is correct the stock 16" tires are too small but the 17" tires are OK.
Stock P205/55R16 837 24.9" can be switched for P205/60R16 810 25.7" Michelin Energy Saver A/S which will lower the speedometer by about 3-4%. I think that would be about the best adjustment you could make (and you get a better LRR tire in the process if you switch from the Ecopia EP 422 to the Energy Saver A/S).
Stock P215/50R17 815 25.5" is likely OK already, I wouldn't recommend going up to the 225/50/17 as it will likely reduce your range and may make the speedometer too slow.
It appears that they made the speedometer more accurate with the stock tire on the 17" rim than they did with the stock tire on the 16" rim. I'm guessing the 16" tire was chosen more for price than speedometer accuracy.
If tirerack's data is correct and my interpretation of the situation is correct the stock 16" tires are too small but the 17" tires are OK.
Stock P205/55R16 837 24.9" can be switched for P205/60R16 810 25.7" Michelin Energy Saver A/S which will lower the speedometer by about 3-4%. I think that would be about the best adjustment you could make (and you get a better LRR tire in the process if you switch from the Ecopia EP 422 to the Energy Saver A/S).
Stock P215/50R17 815 25.5" is likely OK already, I wouldn't recommend going up to the 225/50/17 as it will likely reduce your range and may make the speedometer too slow.
It appears that they made the speedometer more accurate with the stock tire on the 17" rim than they did with the stock tire on the 16" rim. I'm guessing the 16" tire was chosen more for price than speedometer accuracy.