That's really too skinny a wheel for a 245 width tire- You want the wheel width to be approx 80-90%.....Your 245 mm wide tire = 9.6", so you want an 8" wide rim for it. You could possibly go as wide as 9", but the narrower(7") rim creates a lot of sidewall flex while not giving the tire a stable connection to the rim- Take it to the extreme- Your tire cross-section as a pyramid, with the top point as the rim- no stability at all- it just pivots...Now go to the other extreme, with your tire cross section flattened out to a straight line- no flex at all.....Obviously, tho people do extreme things with tires sometimes, there is a happy medium. I had 235/60-14s on 14 x 6.75 rims on my old Comet GT- I could literally push the car sideways approx 1-2 inches, while the sidewalls flexed...I found some Appliance wire mesh wheels(Beautiful rims!) that were 14 x 8- no movement, no matter how hard I pushed on the side of the car...and when I turned the steering wheel - instant reaction...Before, with the 6.75" wide rims, I could waggle the whole car back and forth- out of sync- by wiggling the steering wheel- make you kinda seasick....
[This message has been edited by cvxjet (edited 09-13-2015).]
