Grand Am Series
Join Date: Dec 2011
Location: Calgary, Canada
Re: How much will a tire size change affect my speedometer?
[quote author=Guitar Salad link=topic=209961.msg4228384#msg4228384 date=1336782969]
I was just at a tire shop looking at new tires for my '10 Mazda3. The factory tire size is P205/50R17. The guy at the tire shop told me that I could easily put on P215/50R17 tires on the car (which I didn't really know was possible). How much would this affect my speedo and odometer, and is this generally a good or bad idea? I want to keep the stock wheels on the car, but the increased tire size has a much better selection to choose from as far as replacements go.
Once my 205/50R17's are worn out, I plan to install 215/50R17's. Like your tire guy said, much better tire selection plus the 205's look totally wimpy on our Mazda. The 215's would be slightly wider & just slightly taller, improving handling & performance.
2009 Mazda3 GT Hatchback. Sadly sold..
2.3L/ 5 speed auto.
White with black interior.