New 650 Owner Looking For Wheel Guidance

[sixfiftyay]

so i just purchased a new to me 2013 bmw 650 i gran coupe and i'm in the market for some new wheels and tires.

the wheels i'm looking at are 20x9 in the front and 20x10 in the rear with a +20 offset.

the tires i'd like to use are 245/40 and 275/35. i'm looking to add a little meat on the sidewall.

the car is not lowered though i might in the future.

will i have any issues with this set up?

thanks and i'm looking forward to posting up pics soon!

[BMPOWERED]

Congrats. I can tell you right off the bat, a 20x10 rear with a +20 offset will stick out beyond the fender. The most aggressive offset you'd wanna go on a 10" rear would be about +32. That would make you 25mm more aggressive than stock.

[sixfiftyay]

thanks for the reply. i guess i'll find something a little less aggressive. i can get the same wheel at +35 all around which will be a lot safer.

[sixfiftyay]

so i just got off the phone with bavarian autosport and according to them i should have no issues with the wheels. apparently, they don't poke out past the fender at all.

now i'm torn! i've attached links just in case.

https://www.bavauto.com/bmw-wheel-2085r205120s72
https://www.bavauto.com/bmw-wheel-2010r205120s72

[BMPOWERED]

If you do some searches here, you'll see what guys are running. You can also use a wheel calculator to help. I've attached a pic of my car in which I'm running 20x10 +37. I probably could have gone 5mm more aggressive

[sixfiftyay]

looking at your rear wheels, it seems like +20 would stick out past the fender.

[FBMWWINS]

You can check this site which gives you the situation (current setup vs. wish setup) in details:

https://www.wheel-size.com/calc/

[jjasonSU]

They will stick out 2 mm farther than this:

[FBMWWINS]

Are those original BMW M6 (M433) wheels thus 10.5 / ET 19 on the rear axle on 650i? If affirmative, were any modifications necessary?

[sixfiftyay]

Originally Posted by F06WINS

You can check this site which gives you the situation (current setup vs. wish setup) in details:

https://www.wheel-size.com/calc/

would you happen to know the stock 20" wheel specs?

[FBMWWINS]

Originally Posted by sixfiftyay

would you happen to know the stock 20" wheel specs?

Sure here they are:


FRONT:

8.5 x 20 ET 33 - 245/35

REAR:

9 x 20 ET 44 - 275/30

[jjasonSU]

Originally Posted by F06WINS

Are those original BMW M6 (M433) wheels thus 10.5 / ET 19 on the rear axle on 650i? If affirmative, were any modifications necessary?

Not mine, @FO6 but i thought stock M6 was +22

[sixfiftyay]

Originally Posted by F06WINS

Sure here they are:


FRONT:

8.5 x 20 ET 33 - 245/35

REAR:

9 x 20 ET 44 - 275/30

thanks! this helps a lot.

[sixfiftyay]

just took some measurements and i'm going +20 all around. fronts will move out 1 inch and rears 1.5. should look pretty nasty.

[BMPOWERED]

Originally Posted by sixfiftyay

just took some measurements and i'm going +20 all around. fronts will move out 1 inch and rears 1.5. should look pretty nasty.

Good luck with that. As you mentioned in post #6, a +20 will have your wheels sticking out past the fender. And then post #8 shows some wheels sticking out beyond the fender, stating yours would stick out even +2mm more. I'm not sure why you want your wheels sticking out but to each their own. It'll look nasty alright...LOL. Hopefully Bavauto has a return policy just in case you're not happy.

[sixfiftyay]

Originally Posted by BMPOWERED

Good luck with that. As you mentioned in post #6, a +20 will have your wheels sticking out past the fender. And then post #8 shows some wheels sticking out beyond the fender, stating yours would stick out even +2mm more. I'm not sure why you want your wheels sticking out but to each their own. It'll look nasty alright...LOL. Hopefully Bavauto has a return policy just in case you're not happy.

i actually agree. i decided to go the safe route after i thought it through a little more. i like my wheels flush but once i went out with a tape measure and really saw what they would look like, i changed my mind. i found some other wheels which are 20x9 +30 up front and 20x10.5 +35 in the rear. these will fit much better.

[BMPOWERED]

Originally Posted by sixfiftyay

i actually agree. i decided to go the safe route after i thought it through a little more. i like my wheels flush but once i went out with a tape measure and really saw what they would look like, i changed my mind. i found some other wheels which are 20x9 +30 up front and 20x10.5 +35 in the rear. these will fit much better.

Now that set up will be nicely flush!

[DerBosewicht]

Originally Posted by sixfiftyay

i actually agree. i decided to go the safe route after i thought it through a little more. i like my wheels flush but once i went out with a tape measure and really saw what they would look like, i changed my mind. i found some other wheels which are 20x9 +30 up front and 20x10.5 +35 in the rear. these will fit much better.

Definitely a good choice on trying to stay flush as possible. I believe perfect fitment lies within that range. The set of forged wheels I run is
BC Forged HC-S03 bolt pattern 5x120
- Front 20x9 ET25 Medium Concave
- Rear 20x10.5 ET38 Deep Concave

And I am very please either the results. I run the 245/35/20 in the front and 285/30/20 in the rear lowered on H&R and I have 0 fitment issues!

[zach.aaronauto]

If anyone is interested in a set of used 20" Alpina rims & tires let me know. I'm parting out an entire 2013 650i X-Drive Gran Coupe. Will be making a thread soon. Located on Long Island, NY.