[Tuned435i]

I bought new wheels for my 435i not too long ago. They are Vorsteiner Vff 103s 20x9 in the front and 20x10 in rear. I hope they will fit, but I want to make sure they fit before I make any assumptions!

[Twix]

What are the offsets?

[Tuned435i]

Originally Posted by Twix

What are the offsets?

They are +45 in the rear and +30 in the front. Also meant to say 20x8.5 in the front instead of 20x9.

[Twix]

They'll be hella sucked in. You could put a 15mm spacer on the rear and you'll be fine there. I don't know why you'd want to run a narrower front, but they will fit. A 12mm spacer would work fine up front to get the wheel out of the well more. Tire sizes will be odd, you'll need to go with something like 265/30 rear and 225/30 front to keep the stretch the same. If you did put a 245/30 on that 8.5 wheel, the sidewall won't have the same angle as the rear and it will look weird.

If you want more sidewall, you might have rubbing issues with the big spacers.

[Tuned435i]

Originally Posted by Twix

They'll be hella sucked in. You could put a 15mm spacer on the rear and you'll be fine there. I don't know why you'd want to run a narrower front, but they will fit. A 12mm spacer would work fine up front to get the wheel out of the well more. Tire sizes will be odd, you'll need to go with something like 265/30 rear and 225/30 front to keep the stretch the same. If you did put a 245/30 on that 8.5 wheel, the sidewall won't have the same angle as the rear and it will look weird.

If you want more sidewall, you might have rubbing issues with the big spacers.

Yeah I wish I could put my wheels on an m2 with no problem, but it might not work out like I'd hope. I'm running 245/30 in the front and 275/30 in the rear. I also haven't had experience with spacers so I don't know the cons of them, and running a narrower front sounds kinda dumb. Might just have to see how I like them on the car, maybe test the waters with some spacers and then see if I want to sell the wheels and get new ones or not. Regardless, thank you for your help!

[Twix]

There's also the option to have a wheel shop widen the fronts to a 9". The offset will change, but the extra 1/2" will be on the inside, which is good. A spacer would push the wheel out more giving you the look you want while still having clearance and the hub centric effect.

The problem with spacers is, in order to use the hub centric ring which centers your wheel to the hub, you either need to use small spacers (3-5mm) or large spacers (12+mm). If you lose your hub centric ring, it's hard to centre the wheel to the hub which can cause a wobble. Turner Motorsports makes a cool spacer to retain the hub centric ring but I haven't tried them out yet.

As of right now, try the wheels to make sure they clear the calipers, 3mm is about the minimum clearance needed. Have a good look and see if you like them. If you like the wheels on your car, you can surely have them widened, with spacers installed for far less than a new set of wheels. Although, selling this set also puts a few $$ in your pocket towards a new set. You have a few good options here.

You should even be able to borrow a spacer from a wheel shop to give you a better idea as to what the finished product will look like.