Offset?

[relvis]

Can someone please help me understand offset? I have a 2007 speed3 and i am really stoked on these wheels, Mrr gt1's , and the shop i am going through can only get them in 18x8.5 with a 38 offset, he said he might be able to get them in 18x7.5 with a 38 offset, i am gong to wrap them in 225/40/18, and i am also going to lower the car with H&R sport springs, i have read in a few forums that with 18x8 with a 45 offset and 225/40/18 tires on a speed3 with H&R sport springs that there will be no rubbing issues in the back, so i am just wondering with the setup i explained will i have issues, i don't mind if i have to roll the fenders a bit, but don't want to get to out of hand with it, please let me know, thanks alot guys

 

[mr_mazda329]

The lower the offset number, the more the wheels sticks out from the wheel center. 18x8 +45 is safe for our cars.

Hope that helps.

 

[MikeHTally]

Stock offset is +52.5. +38 sounds a bit iffy.

 

[relvis]

got wheels and tires on the way

I ended up getting MRR GT1's 18x7.5 with a 48 offset, and the tires are 225/40/18, will this set up rub in the rear quarters with H&R springs, they are in the mail as well, thanks for your help

 

[Wastegate13]

I ended up getting MRR GT1's 18x7.5 with a 48 offset, and the tires are 225/40/18, will this set up rub in the rear quarters with H&R springs, they are in the mail as well, thanks for your help

You mentioned +38 in your first post for the 7.5" wheel. Now you are saying it is +48. If +48 is wrong please update. A 225 on a +48 wheel will be 9.5mm closer to the fender. I am running a 215 on a +40 wheel which makes me 12.5mm closer to the fender and I have never rubbed. I am on coilovers however. You should be fine.

 

[mr_mazda329]

With +48...your good. With +38....you should still be good since its only a 7.5'' wheel

 

[relvis]

thanks for the help

I ended up buying a set of MRR GT1's which are 18x7.5 with a 48 offset, and a set of falken FK452 in 225/40/18, H&R springs are in the mail, super stoked to get it all installed, i apreciate the quick replys.

 

[Wastegate13]

Looks good. I like mesh wheels. Take some installed pics.