275 is fineI have 18x8.5 rims i wanna do 235
In the front but can i do 275 in the rear if not what can i do
275 on an 8.5 inch wheel is not "fine". It will fit but barely (for most brands). The sidewall will bulge and the car loses a lot of needed handling ability.275 is fine
Yup! +1OP....here is my suggestion. Compile a list of the tire sizes you are interested in buying and their manufacturers. Then go down the list and call each manufacturer and ask them if that size will work for your wheel. That way you are getting accurate information directly from the source of the product.
I went through this same thing with tire sizes for 6 months and I will tell you that all of the forums, not just ME, are full of misleading information regarding "safe or approved" tire sizes for specific wheel sizes. After all was said and done I have 275/50-17 on 8" wide wheels on the rear and it is absolutely fine. Not one problem and they ride and handle great for daily driving.
Just my $.02.....
What? Not at all. Why does ford run a 235 on the 8" rim? Because their team of engineers has decided that its the best and safest on an 8" rim. Most manufacturers won't run a 275 on anything less than a 9.5" wheel. Of course it can be done but like borii said you will have tons of sidewall bulge and flex.The minimal rim size for 275 is 8" so 8.5 would be far more then just ok
Not sure where you're getting this info or which tire brand you're proposing, but most 275's require a minimum of a 9" rim. Here's the specs right off of Nitto's website for their NT555 in a 275/40/18 or 275/35/18 or 275/40/17. They recommend a 9.5" rim for best fitment, but "Okay" as small as a 9" for this particular tire.The minimal rim size for 275 is 8" so 8.5 would be far more then just ok
Ya on a 275/35 or 275/40, it's easy to make point when you only show stuff that goes along with what you say, why didn't you post thisNot sure where you're getting this info or which tire brand you're proposing, but most 275's require a minimum of a 9" rim. Here's the specs right off of Nitto's website for their NT555 in a 275/40/18 or 275/35/18 or 275/40/17. They recommend a 9.5" rim for best fitment, but "Okay" as small as a 9" for this particular tire.
Shane
http://i1284.photobucket.com/albums/a573/AMShaneLesky/AM%20Forum%20Pics/275_18_Nitto_Sizing_zps3deb4021.jpg
Sorry for the delayed reply! I came down with a harsh sickness last Wednesday and today was my first day back at AM.Ya on a 275/35 or 275/40, it's easy to make point when you only show stuff that goes along with what you say, why didn't you post this
Op never said he wanted a 35 or 40 tire
And a 275/50 is a minimal of 8"
275/45 is a minimal of 8.5"
I'm pretty sure this guy knows what hes talking aboutSorry for the delayed reply! I came down with a harsh sickness last Wednesday and today was my first day back at AM.
The reason I never posted a 275/50/18 or a 275/45/18 is because they're not a practical nor a beneficial sized tire for the OP's Mustang. Using such a tall tire will change the drivetrain ratio of his Mustang and significantly slow down its acceleration. The 275/50/18 is 28.83" tall tire, while the 275/40/18 is only a 26.66" (similar to stock). Keeping the factory tire height will not require recalibration of the speedometer, like the 275/50 or 275/45 would. Those tires were not designed to be mounted on a Mustang, but something closer to a sporty SUV.
I'm sorry if I initially came off harsh, that wasn't my intention! I just wanted to point the OP in the right direction with safety and efficiency in mind. Please let me know if either you have any other questions. I'd be happy to answer them!
Shane