njmurvin

I'm shopping tires for my IS350. Most mfrs make the 225/40/18 size for the fronts. But, there are only a handful of (expensive) tires for the rear's 255/40/18. Is there a substitute size that may be more plentiful that fits on the stock rim, won't rub, won't look stupid and won't throw the speedo off too much?

nn432100

I put on Avon Tech M550 last nov all seasons and they are good enough in winter and summer. Just checked out tirerack and the rears are $155

slee18

iTrader: (1)

you can try 245/40/18 it is just little smaller 275 is might be too big for our rims or atleast on the edge to too big.

2k2 R1

I'd go with 265/35, a little more selection but not necessary cheaper

is350drive

One quick question, i have f-sport wheels and i was wondering if i can put 235/40/19? on the front, would this be ok?

Byprodrive

iTrader: (1)

The best choice is 265/35/18 , it is about 3/4" shorter than 255/40 but that makes it only 1/4" taller than the front 225/40 so it should even out fender gaps. I plan to try the 265/35 when I replace rear tires even thou it will speed up odometer a little. (might help acceleration too )

davidgaddy

I went with 245/45/18

njmurvin

I heard good things about the Falken 912. They don't have the 255/40/18 but they do have a 265/35/18 (recommended above). I looked at their website and they specify a minimum 9" width rim. Is that going to be a deal breaker for us with 8.5" rims?

tqlla3k

iTrader: (1)

I went 245/40/18 in the back and 235/40/18 in the front. I am not a big fan of the staggered set up.

I bought GoodYear Eagle F1 AS tires. I havent put them on yet, but they have a 420 treadwear rating. Should last a long time. In 245/40/18, they weigh 28lbs.

Another good tire is the BFG G-Force SuperSport AS. They weigh 26 lbs each for 245/40/18. They have 400 Treadwear and outclass the good years according to tirerack. However, these tires are on back order for 2 months.

Both are around 160 each shipped from discount tire or tirerack

njmurvin

Yeah. The F1 is on my list as well. However, I believe it's offered in the OEM size of 255/40/18. Why did you downsize? Did you drop and were rubbing?

sktn77a

iTrader: (2)

235s on the front (with stock wheels) appear to cause rubbing on the fender on most of the posters' cars on this forum. What's your experience?