[Jack yang]

After several days of intensive research and calculations
I decided to purchase a set of forged wheels of the following size:
PS4S tires
19*9.5 et22 Front 255/35
20*10.5 et35 Rear 285/30

The kl01 BC forged wheels look absolutely stunning in matte gunmetal and so far there are no complaints about BC forged on the forum.
And yes the sizes are from BBS FIR specs and based on stock suspension and height etc...The point is to keep the inner rim edge on approximately in the same place and outer rim edge pokes out about 1cm without using spacers.
Clearance should be fine based on numerous threads.
And suggestions before pulling the trigger?

[Jack yang]

Sorry, credit to BC forged NA. This is a screenshot from their IG account

[Froscortan]

Going with the PS4S tires paired with those BC forged wheels in matte gunmetal sounds like a killer choice. Now, onto the sizes. You've taken inspiration from the BBS FIR specs, which is a smart move. Keeping the inner rim edge in roughly the same spot while having the outer rim edge poke out a bit without using spacers seems like a well-thought-out plan. But, you know, when I can't decide on something, I often think, why not roll d20? All jokes aside, it might be worth doing one final check to ensure everything lines up perfectly. Double-check those clearances and make sure everything is a go.

[///MPhatic]

1. BC Forged are fantastic, no regrets with the set of KL11's I had.
2. I recommend against 20's in the rear.
3. Remember that the FI-R was designed for the F80/F82, which has a slightly different fitment.
4. I prefer +28 for the front and +38 for the rear for better tire choices.
5. My car in the picture below is running MPS at BMW's recommended 595/600, but removing the rear adjuster drops the car another 10mm, and the front drops 10mm more easily, then fitment would have been bang on.

Money Shot. (Explore) by Andrew Thompson, on Flickr