tire size help

djsiva · #1 10-07-2005, 09:42 AM

I've got a set of Lexus IS300 Sport Design wheels (17x7) on my car with the factory Lexus size tire of 215/45/17 on them. I want to change tires to a wider tire and I'm not sure what is best to get or what will even fit. I'm thinking 235/45 or 235/40. Does anybody know if these will fit without rubbing or harming something else?

Thanks,
Nate

Chiketkd · #2 10-07-2005, 09:44 AM

What's the offset on the IS300 wheels?

djsiva · #3 10-07-2005, 11:45 PM

chike, I'm looking for the offset of the IS wheels but haven't been able to find it. I'll let you know as soon as I do. Thanks for your help.

Nate

djsiva · #4 10-07-2005, 11:59 PM

chike, I'm looking for the offset of the IS wheels but haven't been able to find it. I'll let you know as soon as I do. Thanks for your help.

Nate

wawazat?? · #5 10-08-2005, 06:41 AM

Watch the wheel width as that's more important to fitting a wider tire than the offset. I believe the IS uses a 7" wide wheel with a 35mm offset.

Todd

djsiva · #6 10-08-2005, 11:43 PM

Hey, the wheel is a 17x7 50mm offset. Do you think I could fit 235/40 or 235/45's on there and not rub in the SVX? I know a 235 will fit the wheel because a couple people at the dealership I work at have a staggered wheel setup on their IS300's using 235's in the rear.

Thanks

Nate

mbtoloczko · #7 10-09-2005, 12:04 AM

235/45-17 is a bit wide for a 17x7" rim. I wouldn't run anything wider than a 225/45-17.

Chiketkd · #8 10-09-2005, 08:06 AM

Quote:

Originally Posted by mbtoloczko

235/45-17 is a bit wide for a 17x7" rim. I wouldn't run anything wider than a 225/45-17.

Agreed. 225/45 should be the largest you run on a 7" wide wheel. The offset is good though.

wawazat?? · #9 10-09-2005, 06:08 PM

Tirerack lists manufacturers specifications for the tire they sell that give you a recommended rim width range for each tire size. Could be helpful in your hunt.

Todd