I just bought a set of Enkei RPF1 wheels. 18in x 8 1/2 offset +30. the part number is 3798856530bk. i have no clue what size tires i can fit and look nice. i have a 05 GSR Evo. the rear fenders have been rolled already. i need mainly size. if you could plase help me out. Im in Michigan and the roads suck if you didnt know pot holes everywhere. so i want a nice side wall if possible. Thank you everyone. i got these for a STEAL!!!! so i could always off them if you feel the offset is too much

 

255/35r18

 

you think a 40 or 45 will fit??

 

a 245/40 should fit, but its a bit taller than stock.

 

Ok, Thank you for your help.

 

Most common 18" size used on the board is a 255/35-18. Lots of good feedback using that size.

 

I run 255/35/18 on 18x9's with a 35 offset. I plan on going 265/35/18 next time around as there seems to be plenty of room with this offset that i'm running.

 

Everyone should have this bookmarked.

http://www.miata.net/garage/tirecalc.html

One of the best links I've found on evom. Put the stock size on one side and you'll have good data on what sizes won't mess up your speedo too much.

 

245/40/18 is probably your best bet to get a little extra sidewall and still have decent section width without having speedo issues. I am running that on a set of 18x8.5 et38 with plenty or room.

 

i also run a 255/35/18 with a 35 offset and i have plenty of room too