I'm gonna be upgrading my tires and I was just gonna keep my stock tires for now, so I was wondering if I could fit 225/55/16 on my Wrx Sedan without any problems. I'm looking at getting the Bridgestone Turanza LS-Z. I searched and ppl say that 225/50/16 is the best fit but this tire isn't avalible in that size so would the tire size, 225/55/16, I'm looking at be able to work?


Thanks,

Jason

 

225/55/16 is too big, it increases your outer diameter by 0.8 inches. that will affect your spedo/odo and you wont be able to lower your car at all as you will definatly rub.

225/50/16 is the way to go

and those tires you are looking at are quite expensive, i would look at a different tire, tire rack has them at $162 a piece. there are some really good all season tires out there that you can get in the right size for half that price

 

Thanks!! after looking around think I'm gonna go for the Continental ContiExtremeContact, priced at $87.


Jason

 

Just a quick question, I cann't use 225/55/16 because the width of the tire is an issue? The stock tires I have on now are 205/55/16, so by going with 225/55/16 I'm increasing the diameter, is that correct?

Thanks for the help,


Jason

 

you are increasing the width and keeping the same aspect ratio which in turn gives you a higher sidewall. if you go wider you need to shrink the aspect ratio in order to get the same overall diameter as before

 

first number = diameter
second number = aspect ratio (diameter/sidewall width - i do believe)
third number = rim size..
wow.. all my vehicle dynamics stuph is quickly leaving me! doh!

 

heres a link to a tire size calculator.
http://www.miata.net/garage/tirecalc.html

 

:checks to see if updates are finished:

205/55/16
205= tire's max width
55= aspect ratio, profile - the sidewall heigth expressed as a percentage (55% of 205= sidewall heigth)
16= wheel diameter

The Plus Sizing Concept/Theory basically estimates what size tire you can go with to get a wider tire, and still keep the same Overall Diameter. A 'Plus Zero' means that you are putting a wider tire on the same wheel. To do this you add 10 to the first # & subtract 5 from the second #, ie go from a 195/60/15 to a 205/55/15. A 'Plus One' is similar to a Plus Zero, but you are upgrading you wheels 1in in diameter. To do this you add 10 to the first #, subtract 10 from the second #, & add 1 to the third #, ie go from a 205/70/15 to a 215/60/16. You can also do Plus Twos, Threes, Fours, etc...

This is a Theory, not a hard & fast way to ensure that you keep the same OD all the time, ie the most accepted Plus One on WRXs is a 225/45/17, as opposed to 215/45, which is about .3in lower in OD than the 225/45/17 & 205/55/16.

 

i just go here

http://www.onlineconversion.com/tire...conversion.htm

and punch in the possible tire sizes and see what they come out to

 

Also take a look at the sticky thread on the top of this forum - "General Tire Info" - it really is good reading.

 

All righty, I've got what I needed, Thanks a lot!!

Jason