i'm gonna get a set of kumho ecsta supra 712 tires, i dunno if i should get the 255/50/16s or the 245/50/16s. my 245s rub in the front cuz i dont have the iroc steering box but the 255s are only like .2" wider per side so i dont know if it'll be much worse. would the traction difference be negligible?

 

My buddy had 245's on the back burned them off and got 255's and felt a difference on his launches..then his rear broke. You will hook up better and why not get them. Bigger is better

 

i decided to go with a pair of the kumhos in 245 for the front and keep my near new tires that are already in the back, i'd rather not have two different sets of tires but it's $250 cheaper this way

 

When I bought my 89 Iroc, the front tires were totally bald and the backs were almost as bad, so I needed new ones. I searched around and sent my dad to Sears to get me some 245's for my 16 rims. My dad came home with 255's because they were only like 90$ a piece. I thought cool...saved me a hell of a lot of money...but after a while I started to notice that the front tires had been rubbing and eventually ripped off one of my mudflaps . But no other damage has really been done...Ive been thinking about buying some 245's for the front and keeping the 255's as an extra pair for the back.

 

245, FRONT, 255 REAR!!

 

My car calls for the 245's all the way around, but I thought I'd try 255's in back. Big mistake. When turning left or right at a high rate of speed they would rub and sound like grinding instead of rubbing. I had to take 'em back and get the 245's.

 

I'd stick with 245 all around...

 

The 255's are also taller, which isn't always good. xxwarrior36xx, I would hope an increase in traction going from old worn out tires to new tires, regardless of the very small change in tire width. Tread width from one brand to another can vary by the difference from 245-255.

 

i am running 255s in the back. on one side they rubbed a bit on the inside of the wheel well. a 2 lb sledge fixed that. on the other hand my stock 235/55-16 rub in the front...WTF?

 

i've Falken 255's rear and those rub fender when accelerating at WOT from corner next ones will be 245's. naturally WOT or idle are the only ways to drive



-P

 

I had 245 in front and 255 in rear and got good traction.Now I have 245's on all corners and dont get traction.Im going back to 255's in the rear.

 

I'm going 255 all around.

I've got 255/60R15 in the back, which are 27" tall. They don't rub. Therefore I see no possible way for 255/50R16 to rub, since they're the same width only shorter.

 

99Hawk120: i have 255/50-16 rear and original diamond spoke wheels. for sure with this combination tyre will hit somewhere, but only when hard cornering and accelerating at same time. 15" wheel is maybe different?


-P

 

Not if you have the proper adjustments to the suspension I don't think.

I have an adjustable panhard, adjustable control arms, stiff springs, and 21mm bar. I have noticed no rubbing with 27" diameter, 255 width tires, not even when beating the hell out of the car.

Assuming the new rim is the same backspacing, etc, I really don't understand how a same width tire with 1" less diameter is going to hit. It's simple geometry, the new tire will not occupy any space that the old tire did not.

 

I have 255 50 ZR 16 Futura ultra Z's in the back and have not experienced any rubbing.