Just wanted to get some info on the right tire size for my Xb. I have ordered 18 X 7.5 and was just wondering if I should go with a 225 or 215 X 35? I am going to lower the Xb at the same time the wheels go on it.(1.6ft and 2.0rear) Thanks for the help!!

I used http://www.miata.net/garage/tirecalc.html to find that 215/35R18's are the best fit as far as keeping your OD right etc.

I used http://www.yokohamatire.com/pdf/paradaspc2.pdf to see that this size fits 7.5 width rims best. So that's your answer. Now, you want to make sure to go with an offset of 32mm-42mm on the wheels, I got that from http://www.scionlife.com/forums/viewtopic.php?t=348

Don't take my word for it though :) But that's what I've found in my research.

Just wanted to get some info on the right tire size for my Xb. I have ordered 18 X 7.5 and was just wondering if I should go with a 225 or 215 X 35? I am going to lower the Xb at the same time the wheels go on it.(1.6ft and 2.0rear) Thanks for the help!!

go with the 215 if you want it to be flush with the rim. i am runnin 19x8 and i have 225/35 and the tire does not stick out at all. it rreally depends on how you want it to look

http://img21.photobucket.com/albums/v62/unlmtdndeavor/My%20bB/Wheels/NE-O_Side.jpg

Thanks for the feedback. Overall I just want it to look good. I don't really want the tires sticking out on the side but I don't want them to look like the factory bicycle tires that are on there now.

if i were you, i would go with the 40 or 45 series 215/40/18 or 215/45/18. I have the 35 series pirelli's and they are kinda rough riding, and, the other day, i hit a fat pothole and totally blew one of my tires bcuz of the small sidewall. it was 145$ to replace that S.O.B. I think if i had the 40's or 45's it woulda been ok. Not to mention, the 45's will fill up your wheelwell more and make it look like u got bigger rims :wink: I have the 2" drop and i still got some wheelgap :?

225 will be the ideal width tire for that size rim for most tires, but 215 will be fine as well.

I think youll find either will look just fine.

base your decision on cost and how much you care about the speedo/odo reading as close to stock as possible.

Well, I am sad to say I ordered the tires in 215-35-18 before reading the last few suggestions. The good thing is they look great on the Xb and the ride is not that bad either. Hopefully soon I can have some pics up and get some of everyones opinion. Thanks to everyone who helped even though I still ordered the 215's.