[Matterz]

So I have a 2009 Honda Accord Sedan v6 EX, been having it for over 6 months now, and the stock tires are wearing out (I checked everything, except the tires at dealership, and no warranty on tires, but doesn't matter). So I've decided to start placing new tires and also some rims. I've been doing research on what sizes I should go with that won't affect performance (maybe a little), but that also catches my interest.

So let's get to the point and hopefully helps others when I find an answer.

My Honda has stock tires/rims of 225/50R17 (17x7.5).

Listed below is a link that I've calculated different tire sizes already, but have an opinion about it, because I want 18inch rims with a slight twist.

My question is, can I place (Tire Size 3) 245/40R18 (18x8.5 (<mostly) or 18x8) in the front, due to being FWD to get traction, while having (Tire Size 2) 235/40R18 (18x8 (<mostly) or 18x7.5) in the rear, and not hitting the flaps when turning?

http://www.1010tires.com/Tools/Tire...50R17/225-40R18/235-40R18/245-40R18/235-45R18

Please and thanks!

 

[Matterz]

Running with the rear tires having smaller contact patch will be akin to running high speed grippy tires in the front and cheap non-grip tires in the rear.

you should always have the grippiest tires on the rear to keep the back end from scooting out from under you in turns or evasive emergency moves at speed.

VSA only does so much.:thmsup:

Miker

Thanks for clearing things out, I'll be placing all four tires the same for safety issues, but would 245/40R18 (18x8) have contact with my car when turning?

or can I get away with 245/40R18 (18x8.5)?

 

[Matterz]

245/40-18 is a very good choice, the ride will be a little bit firmer. The 8 inch wheel width is a "legal" squeeze fitment that will increase the tire height slightly while giving a slightly more cushy ride, and the 8.5 recommended wheel width will give a more reference ride, a little bit firmer, with less heat generated by sidewall flex, but in ordinary use that probably doesn't matter. So long as you choose the right offset for the wheels, you won't have a problem with rubbing. You will have no problem with this size on all 4 corners.

You might want to consider sport springs that provide a moderate lowering, like TEIN H.Techs, if you go this route, and make sure to keep the combined wheel/tire combination weight as close to your existing stock wheel/tire weight as possible.

I don't think you will find any advantage in having smaller wheels and tires in the rear.

Perfect! Appreciate everything you've explained, this was a fine explanation. As for suspension/springs, I was thinking in the near future on getting the 2009 Honda Accord Mugen sports suspension transferred over to my accord.