[EL MEJOR]

So I been going crazy mad reading to tons of threads trying to find the perfect info on which wheels to put on my ride. I still have about 5 weeks before it comes in and so I want to have my wheels ready for it. I want to put 21" on it but am having trouble understanding how it would fit or not because a lot of the people on these forums talk about changing coils. Must they be changed in order for them to fit? what happens if I dont? is there a gap or what? also I absolutely love the pic of rear tires on luigimaster24 528 (http://f10.5post.com/forums/showthread.php?t=522960) has the M3 look. This is exactly what I want but I wanted to get the F07 21" 312 rims. problem is the tire specs are 245/35/21 and 275/30/21. Is it possible to go wider on those same rims, say 255/30/21 and 295/25/21 like on luigimaster24 ride? Please help! any advice? Any info would be greatly appreciated.

[EL MEJOR]

Well since no one answered to help I kept searching and off BF and came across this link which i think answers and helps a lot. Hope its useful to someone else as well...
http://wiki.answers.com/Q/Can_you_pu...n_the_same_rim

[jlgwu]

Hi, I'll try to give you a short answer. The aim here is to retain the same overall circumference for your new rims and tires as the OEM setup (within 3% tolerance). Otherwise, your speedo will be way off and you also risk brake failure. Here's a website calculator you can use to calculate tire/rim sizes and how changing tire/rim sizes will affect your circumference and speed.

http://www.1010tires.com/tiresizecal...?action=submit

The calculator will also give you optimum rim widths as well.

Another thing you will need to worry about is the offset of the rim and centre hub bore. I don't know but the F07 rim may not have the correct offset. Check using this website:

http://felgenkatalog.auto-treff.com/

The stick F10 18" rims have an offset of 30mm. The staggered setup using 19" rims have a front offset of 33mm and rear of 44mm. If your offset is not correct, your wheels may rub on the inside or outside edge.

Hope this helps a bit....

[EL MEJOR]

Awesome. You just gave me a slap in the face. Thanx. Im glad i read this before I bought rims. Thanx dude

[jaekeem]

As a reference I have 20x8.5 and 20x9.5 wheels, and 32mm and 35mm offsets respectively.

To get my wheels flush with the fenders I'm putting a 13mm spacer on the front and a 5mm on the rear.

As for the coils people are changing their suspension to reduce the gap from the top of the tire to the fender. So far there arent any springs available that reduce the gap enough to make the car look perfect with 20" or 21" wheels.

[delvek]

Go with the stock 550i Msport rims, they look amazing in person, pictures don't capture the angles of the spokes.

[EL MEJOR]

I am. But I'm going to use them as snow wheels for the winter and put snow tires on them and snow chain. I want 21" for summer.

[EL MEJOR]

Originally Posted by jaekeem

As a reference I have 20x8.5 and 20x9.5 wheels, and 32mm and 35mm offsets respectively.

To get my wheels flush with the fenders I'm putting a 13mm spacer on the front and a 5mm on the rear.

As for the coils people are changing their suspension to reduce the gap from the top of the tire to the fender. So far there arent any springs available that reduce the gap enough to make the car look perfect with 20" or 21" wheels.

Would I need spacers if the 21" 312 rims for the F01 are 8.5" and 10" and the offset 25 and 41? While the 20" 312 for the F10 are 8.5" and 9" with 33 and 44 offset.

[GMP - MATTHEW]

2011 BMW F10 5 series with a set of 22” Modulare C15 3-piece concave wheels, with the optional deep concave rears. The wheels are 22x9.5 and 22x11, and are brushed with a chrome lip

[GMP - MATTHEW]

more pics

https://www.gmpperformance.com/index...hicle&VID=3232

[EL MEJOR]

Originally Posted by GMP - MATTHEW

2011 BMW F10 5 series with a set of 22” Modulare C15 3-piece concave wheels, with the optional deep concave rears. The wheels are 22x9.5 and 22x11, and are brushed with a chrome lip

WOW! thats just amazing right there. I have to ask, What wheel set up are you running? do you have any rubbing? did you lower the car. Again, AWESOME

[Brian@ShowroomM]

We have done a number of 21s for F10 and they fit well. You are limited in the tires you can purchase which sucks but aside from that you would not have a problem.

We are actually finishing up a set for a customer this week and we'll be posting pictures as soon as next week.

[remmib]

Originally Posted by GMP - MATTHEW

more pics

https://www.gmpperformance.com/index...hicle&VID=3232

Very nice wheels, and it's the best 22" fit I've seen so far.

But I still think 21" is the way to go.

[GMP - MATTHEW]

Originally Posted by EL MEJOR

WOW! thats just amazing right there. I have to ask, What wheel set up are you running? do you have any rubbing? did you lower the car. Again, AWESOME

No rubbing at all. I believe just lowering springs on factory dampers if I am not mistaken. If you would like to inquire they are available 19-22 inches.

[EL MEJOR]

Originally Posted by jaekeem

As a reference I have 20x8.5 and 20x9.5 wheels, and 32mm and 35mm offsets respectively.

To get my wheels flush with the fenders I'm putting a 13mm spacer on the front and a 5mm on the rear.

As for the coils people are changing their suspension to reduce the gap from the top of the tire to the fender. So far there arent any springs available that reduce the gap enough to make the car look perfect with 20" or 21" wheels.

So is adding a wheel spacer equivalent as to having a bigger offset? Do wheel spacers compensate for small offset?

[remmib]

Originally Posted by EL MEJOR

So is adding a wheel spacer equivalent as to having a bigger offset? Do wheel spacers compensate for small offset?

It's more about high and low offset.

An example, ET40 and add 10mm spacer makes it ET30, so adding spacers will get you alower offset.

[EL MEJOR]

Originally Posted by remmib

It's more about high and low offset.

An example, ET40 and add 10mm spacer makes it ET30, so adding spacers will get you alower offset.

hmmm so if the OEM 20" wheel style 312 for F10 are
-front: 8.5" et33
-rear: 9" et44

and the ones I want which are OEM for F01/F07 21" wheel style 312 are
-front: 8.5 et25
-rear: 10" et41

would i need spacers? or would I already be flushed or over exposed because of the difference in width/offset? thanx for your input.

[remmib]

Originally Posted by EL MEJOR

hmmm so if the OEM 20" wheel style 312 for F10 are
-front: 8.5" et33
-rear: 9" et44

and the ones I want which are OEM for F01/F07 21" wheel style 312 are
-front: 8.5 et25
-rear: 10" et41

would i need spacers? or would I already be flushed or over exposed because of the difference in width/offset? thanx for your input.

No need for spacers since the offset of the F01 wheels already have a lower offset, so they will sit more flush than the OEM 312 wheels.

[GMP - MATTHEW]

Originally Posted by EL MEJOR

hmmm so if the OEM 20" wheel style 312 for F10 are
-front: 8.5" et33
-rear: 9" et44

and the ones I want which are OEM for F01/F07 21" wheel style 312 are
-front: 8.5 et25
-rear: 10" et41

would i need spacers? or would I already be flushed or over exposed because of the difference in width/offset? thanx for your input.

Front Wheels - If you have 8mm or more of space in between the fender and your factory wheels and tires, then the front wheels from the F01 will work. If you have more than 8mm than you may want to purchase a spacer to make them sit more flush.

Rear Wheels - A 10" wheel can fit back there its just the offset will determine if the wheel sits too far inside, just right or outside the fender. My guess that they may sit too far inside and not clear the suspension or just doesnt sit flush with the fender enough to your liking but clears the suspension.

[KRUZNM3]

there are plenty of nice wheels out there! but i suggest you go with 21s! Hopefully mine will be here before the end of July!

[EL MEJOR]

Originally Posted by remmib

No need for spacers since the offset of the F01 wheels already have a lower offset, so they will sit more flush than the OEM 312 wheels.

Thank you thank you thank you!

[EL MEJOR]

Originally Posted by GMP - MATTHEW

Front Wheels - If you have 8mm or more of space in between the fender and your factory wheels and tires, then the front wheels from the F01 will work. If you have more than 8mm than you may want to purchase a spacer to make them sit more flush.

Rear Wheels - A 10" wheel can fit back there its just the offset will determine if the wheel sits too far inside, just right or outside the fender. My guess that they may sit too far inside and not clear the suspension or just doesnt sit flush with the fender enough to your liking but clears the suspension.

Wow thank you so much for this input its exactly the help I needed! THANX A BUNCH!!!