763M Wheels - 20" Front Option F82 M4

[juicehound]

'15 M4 bone stock

can I run a pair of BMW Part # 36-11-8-071-789 in the front instead of the 19's that I currently have that are normally spec'd by BMW?

The rear wheel is a 10x20 ET:40....

If this would work, what tire size is required?

Spacers required? etc.

Thanks !!

[Fat Goose]

Selling your front 763M 19’s?

[juicehound]

if I am able to confirm fitment of the 20's for the front then yes I will be selling the 19's once I get the new set on the car

[Maitre_Absolut]

arent M performance 763m only available in matt black or gold (vs OE CS 763m in orbit)?

you will have to buy complete set to colour match

[juicehound]

Originally Posted by Maitre_Absolut

arent M performance 763m only available in matt black or gold (vs OE CS 763m in orbit)?

you will have to buy complete set to colour match

I have a complete set of 763m in orbit gray from the CS already

I do not have to buy another complete set to get the 20's up front, they are available now as individual wheels

[Maitre_Absolut]

Originally Posted by juicehound

I have a complete set of 763m in orbit gray from the CS already

I do not have to buy another complete set to get the 20's up front, they are available now as individual wheels

I just realized you are asking to run a set of rear CS wheels in the front. I highly doubt that will fit. Like I said they make front 20 in 763 but black or gold only

[ntg44]

It'll fit with a 15mm spacer, maybe 12? 10.0 +25 is common for square fitment, which is 17mm more outward than stock.

In any case, you would be pushing the front wheel out that much more, so for best handling characteristics, you'd want to add the same spacer to the rear. 15mm will also fit in the rear.

[erictrainer]

Yes it will...just slap a 15 or 18mm spacer in the front and you can run a 275/30 or 265/30 tire. No problems.

[juicehound]

Originally Posted by ntg44

It'll fit with a 15mm spacer, maybe 12? 10.0 +25 is common for square fitment, which is 17mm more outward than stock.

In any case, you would be pushing the front wheel out that much more, so for best handling characteristics, you'd want to add the same spacer to the rear. 15mm will also fit in the rear.

thank you for this - so 15mm spacer in front and rear then - do you have any personal experience with this or similar setup? do you recommend a certain tire size for the front and rear with this setup?

Originally Posted by erictrainer

Yes it will...just slap a 15 or 18mm spacer in the front and you can run a 275/30 or 265/30 tire. No problems.

thank you for your input - do you have any personal experience with this or similar setup?

currently the tires are 285 rear and 255 front so if I put a 265 or 275 in the front should I increase the rear tire diameter? I would imagine so but am not an expert with this.

the next question would naturally be what is the acceptable range of tire for the wheel in question 20x10 ET40 763m

[juicehound]

anyone running this setup able to chime in?

in addition to *knowing* it works it would be nice to get an opinion from someone who has this or similar setup that can give driving / handling impressions versus a stock / BMW spec setup

thanks for the replies so far everyone !

[ntg44]

Originally Posted by juicehound

thank you for this - so 15mm spacer in front and rear then - do you have any personal experience with this or similar setup? do you recommend a certain tire size for the front and rear with this setup?

currently the tires are 285 rear and 255 front so if I put a 265 or 275 in the front should I increase the rear tire diameter? I would imagine so but am not an expert with this.

the next question would naturally be what is the acceptable range of tire for the wheel in question 20x10 ET40 763m

I had a set of 18s with 16mm more outward in front and 17mm more outward in back, and my car was lowered. I had 265 front tires and 285 rear Continental ECS tires and it was perfectly fine with no rubbing. So I applied that same estimation to what you're trying to do and with a 15mm spacer all around you'll be absolutely fine with 265 up front and 285 rear. A 295 rear might fit if you're at stock height, but depending on the tire, it would be pushing it if you're lowered. I had a 1 finger gap with 285 rear with my wheels that were comparable to the 763m with 15mm spacer on lowered suspension.

[juicehound]

Originally Posted by ntg44

I had a set of 18s with 16mm more outward in front and 17mm more outward in back, and my car was lowered. I had 265 front tires and 285 rear Continental ECS tires and it was perfectly fine with no rubbing. So I applied that same estimation to what you're trying to do and with a 15mm spacer all around you'll be absolutely fine with 265 up front and 285 rear. A 295 rear might fit if you're at stock height, but depending on the tire, it would be pushing it if you're lowered. I had a 1 finger gap with 285 rear with my wheels that were comparable to the 763m with 15mm spacer on lowered suspension.

my car is totally stock - only difference that may make something not translate would be the size of your wheels being 18x? vs my desired setup being 20x10

I did some digging and on a 20" wheel with 10" width the range seems to be 255 to 285 but have heard people going with 295 for the rear and that working

I would prefer 265/30/20 front and 295/30/20 rear if it can be done with a 10" wide wheel

[ntg44]

Originally Posted by juicehound

my car is totally stock - only difference that may make something not translate would be the size of your wheels being 18x? vs my desired setup being 20x10

I did some digging and on a 20" wheel with 10" width the range seems to be 255 to 285 but have heard people going with 295 for the rear and that working

I would prefer 265/30/20 front and 295/30/20 rear if it can be done with a 10" wide wheel

It can be done, but there are different ways to do things depending on the priority.

If you only care about tire size and fitment, throw the 15mm spacer up front and leave the rear alone or add up to a 10mm spacer, maybe 12mm. Then put the 265s and 295s on.

Spacers are cheap and have good resale value, so buy a second set of 15mm and see if it fits. It could, or it couldn't. I just know that 285 at that rear offset was a one finger gap in my case with no rubbing. But there's really nothing to lose by trying it and just adjusting the spacer later if it rubs. I was just suggesting that if it was my car, I'd want 15mm all around to keep the front to rear the same.

You'll be fine with 265/295 either way.

[PayamFSU]

It's going to drive like crap with a 20x10 wheel in the front

[juicehound]

Originally Posted by ntg44

It can be done, but there are different ways to do things depending on the priority.

If you only care about tire size and fitment, throw the 15mm spacer up front and leave the rear alone or add up to a 10mm spacer, maybe 12mm. Then put the 265s and 295s on.

Spacers are cheap and have good resale value, so buy a second set of 15mm and see if it fits. It could, or it couldn't. I just know that 285 at that rear offset was a one finger gap in my case with no rubbing. But there's really nothing to lose by trying it and just adjusting the spacer later if it rubs. I was just suggesting that if it was my car, I'd want 15mm all around to keep the front to rear the same.

You'll be fine with 265/295 either way.

Originally Posted by PayamFSU

It's going to drive like crap with a 20x10 wheel in the front

this is a good point which I have no experience or knowledge upon which to weigh in on

although I would prefer the *LOOK* of the proposed setup, if it would indeed cause the cars handling to go to pot i would definitely have second thoughts

paymanFSU have you had any first or second hand experience with that or are you just assuming

[PayamFSU]

Originally Posted by juicehound

this is a good point which I have no experience or knowledge upon which to weigh in on

although I would prefer the *LOOK* of the proposed setup, if it would indeed cause the cars handling to go to pot i would definitely have second thoughts

paymanFSU have you had any first or second hand experience with that or are you just assuming

I personally have not but it's a heavy wheel due to its size and will surely make the front end feel heavy , plus depending on which tire you go with and spec could be even heavier …… sell the set you have now and go with Richland forged , prob make some money doing it

[Wmf80]

Originally Posted by PayamFSU

I personally have not but it's a heavy wheel due to its size and will surely make the front end feel heavy , plus depending on which tire you go with and spec could be even heavier …… sell the set you have now and go with Richland forged , prob make some money doing it

Richland forged are bad quality.

[Fat Goose]

Originally Posted by Wmf80

Richland forged are bad quality.

Oh?

[PayamFSU]

Originally Posted by Wmf80

Richland forged are bad quality.

Really ? Can you elaborate ?

[Wmf80]

Originally Posted by PayamFSU

Really ? Can you elaborate ?

A few members had them. Very unhappy and sold or complained.

[juicehound]

well I didn't know there was another company doing the 763m design - even if I went that route it would be $2920 plus tax - definitely would not make money but probably could break even if I did that

also they don't list the weights so idk - for the front oem 19x9 are about 20.5 pounds and the rear 20x10 are about 23 pounds - not sure if richland would be any lighter especially with the spec I'd go for

anyone actually have experience with a 20x10 wheel up front that can chime in with first hand thoughts ?

[juicehound]

quick reply from the richland forged cs team for weights of their version of the 763m, the RF-GT4

20x9.5 - 23.9lbs
20x10.5 - 24.9 lbs

19x9.5 - 22lbs
19x10.5 - 22.8lbs

18x9.5- 20.8lbs
18x11 - 21.5 lbs

so the Genuine BMW 763m wheels even in a 20x10 are lighter than the RF version in a 20x9.5