Tire weight difference

Tire weight difference

I had a question since I am putting some BF Goodrich winter tires on and saying good bye to the stock Michellin Pilots that the XRS comes with till next April. Since 195/55/16 is a very rare size and only expensive tires available in this size, I decided to go wider while keeping the curcumeference of the tire the same so now I will be getting 205/55/16 on the stock 16 alloy rims. 10 mm is roughly an addition of half an inch in width. What are your thoughts about weight addition?? Will the new winter tires weigh significantly more than my standard Michellins??

who cares, safety first

Yeah, that is true. Although, it does not make much difference in the winter , just wondering how much weight will I be adding to the car. ;-)

weight difference is minimal. might be 2-3 lbs max.

In order to keep the same rolling diameter from 195/55/16 u need to run 205/50/16.

I will double check with Toyota tommorow, but if I change the 55 to 50 that will mean the diameter of the wheel will become to 5 mm less. Correct me if I am wrong, but if I keep it 55 then the diameter of the wheel will stay the same.

NO. When u get wider tires you rolling diameter gets larger unless u go with a lower profile. Here's a calculator u can use to help with u're decision:

http://www.miata.net/garage/tirecalc.html

XS PSI has got the size right.

You got the width designation right: 195/55R16 >> 195 is tire width in mm, 55 is aspect ratio in percent (%) (ratio of side-wall height to tire width), and R16 is Radial tire 16" in diameter.

So a 205/50R16 would have almost the same rolling circumference (it is a hair smaller than the OEMs - speedo would read high, actual speed is 60 - speedo would read 59 and some change).

Good Luck.

Thanks a lot guys for the feedback. That helps a lot. I have already ordered the B F Goodrich Slaloms through Toyota, but I will talk to them tommorow and I guess I will switch to 205/50/16 since I had the wrong idea that 50 stands for the wheel wall. The calculator was help as well. I used the calculator that XS PSI mentioned and it said if I change to 205/55/16 I will be going 1.8% too slow and with 205/50/16, it told said I will be going 1.6% too fast. So I guess there is no perfect non-stock tire size. Thanks guys.

holy crap, is it true that your speedometer reading with non-stock tires is slower than what youre really travelling?

minimal difference for speedo and odo change.