giiyanman Posted May 22, 2018 Share Posted May 22, 2018 Ok, I tried to search for answers but came with conflicting reports. Guys from the uklegacy forums say that the stock wheel offset for BE/BH chassis are +47/48, but other sources such as NASIOC say its +55. Which is which?! I'm planning on getting after market rims so I want to make sure they will fit the way I want them to. Link to comment Share on other sites More sharing options...
Osei Posted May 23, 2018 Share Posted May 23, 2018 USDM is 55. Don't know JDM. Use this site to compare http://www.rimsntires.com/specspro.jsp O. Link to comment Share on other sites More sharing options...
nosaint Posted May 23, 2018 Share Posted May 23, 2018 I have a JDM 2000 B4, it came with 55. I also have a second set of rims off BRZ at 48 and they fit, Well they did till i did the 4 pot brake swap Link to comment Share on other sites More sharing options...
giiyanman Posted May 23, 2018 Author Share Posted May 23, 2018 Ok, 55 it is! Thank you folks. Link to comment Share on other sites More sharing options...
rougeben83 Posted May 23, 2018 Share Posted May 23, 2018 55 is stock OEM subaru fitment for 6.5-7" width rims. If its 7.5 or 8", they sometimes use 47-48, depending on which manfucturer (enkei, bbs, etc) they use to make that specific rim. They also use the latter offset sometimes for cars with plastic fenderflares (e.g. foresters and outbacks) to compensate for the wider-looking fenders Link to comment Share on other sites More sharing options...
giiyanman Posted May 24, 2018 Author Share Posted May 24, 2018 I went to a local shop today and they suggested me an 8" wide rim (so 17x8) with a 45 offset. This will stick out a full inch more than my current stock rims. And they are saying there will be no stretch if fitted with a 225/45r17 tire. I want to keep my rims with the stock stancing. What are my limits on the rim width and offset? Link to comment Share on other sites More sharing options...
rougeben83 Posted May 24, 2018 Share Posted May 24, 2018 Assuming you're starting with a 7" width rim, the tire shops suggestion would place the new rim 1/2" wider on the outside and 1/2" wider on the inside. That's a typical subaru wheel offset for an 8", you should be fine the 225 width tire should also work. I have had multiple set of 8" wheels in that offset on my old 3rd gen legacy. Just for reference, the 05-07 STI used a 225 width tire on 8" width wheels. Link to comment Share on other sites More sharing options...
nosaint Posted May 24, 2018 Share Posted May 24, 2018 this will help you figure things out... https://www.1010tires.com/Tools/Wheel-Offset-Calculator Link to comment Share on other sites More sharing options...
giiyanman Posted May 26, 2018 Author Share Posted May 26, 2018 Assuming you're starting with a 7" width rim, the tire shops suggestion would place the new rim 1/2" wider on the outside and 1/2" wider on the inside. That's a typical subaru wheel offset for an 8", you should be fine the 225 width tire should also work. I have had multiple set of 8" wheels in that offset on my old 3rd gen legacy. Just for reference, the 05-07 STI used a 225 width tire on 8" width wheels. Im not sure I get what you mean. How would you get the rims 0.5" wider outside and 0.5" wider inside? Is that not dependent on the offset? this will help you figure things out... https://www.1010tires.com/Tools/Wheel-Offset-Calculator I wish this showed pictures of how the tire would seat on the rims.. Thank you though! Link to comment Share on other sites More sharing options...
Osei Posted May 26, 2018 Share Posted May 26, 2018 If you follow link at my earlier post, you can visualize etc. O. Link to comment Share on other sites More sharing options...
giiyanman Posted May 31, 2018 Author Share Posted May 31, 2018 If you follow link at my earlier post, you can visualize etc. O. I was looking for something like, actual pictures of tires mounted on the rims and on the car. Fitment Industries' site offers something similar but they dont have pictures for B4 RSKs... Link to comment Share on other sites More sharing options...
giiyanman Posted June 17, 2018 Author Share Posted June 17, 2018 Update with the wheels: I ended up buying Enkei TM7s, 17x8 with an offset of 45 and bolt pattern of 5x100. Bore size was 72.6 so I had to purchase 72.6 -> 56.1 hub centric rings. I wrapped the set with 225/45ZR17 profile BF Goodrich Sport Comp 2 A/S all-season tires. Installed the tires yesterday, seemed to work well. It cleared the fender with about 4 to 4.5 cms of clearance: However while driving around yesterday I felt/noticed that the tires are hitting the rear fenders when I go over bumps on the road at speed. Which means I have to get my fenders rolled.. Curses to the shop that told me it will fit no problem. Link to comment Share on other sites More sharing options...
nosaint Posted June 20, 2018 Share Posted June 20, 2018 i had the same problem. Was all worried my new wheels would not fit the new 4 piston calipers...They fit no problem but the rears rub on a bump as well.. Link to comment Share on other sites More sharing options...
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