G87 M2 930M wheels are cast, not forged

VIERsr · 03-20-2023, 04:34 PM

Quote:

Originally Posted by Daily Downshift

Your argument is hurting my brain, you couldn't be more incorrect here man. Please do some research on fully forged wheels vs what manufacturers call "forged" or more correctly named, flow formed. FULLY forged is a completely different ball park when it comes to weight and pricing.

I think we are wasting our time, some people have no idea what they are talking about, but they are very good at believing everything they hear without using their brains

DailyDownshift · 03-20-2023, 05:01 PM

This is my last post here because I don't want to get into a keyboard battle on the internet over something so trivial.

763M "forged" wheels for OG M2 F87: Front 19x9, 22.54lbs. Weighed them myself at a shop using an accurate scale. *These are the LIGHTEST wheels BMW has put on any recent M car FROM FACTORY*

MRR FS01 Flow Formed wheels for OG M2 F87: Front 19x9.5, 22.4lbs. Weighed them myself at a shop using the same accurate scale. *These are flow formed, NOT forged wheels, that are half an inch wider than the 763M wheels but weigh slightly less..*

Now let's look at one of the cheapest FULLY FORGED options on the market: APEX VS-5RS Fully Forged BMW Wheels: 20x11, 21.7lbs. I purposely went bigger AND wider to make my point here. These are $900 per wheel, so about $3600 for a set. Somehow these forged wheels are larger and wider than the 763M "forged" wheels (BMW's lightest factory wheel), yet a full pound lighter..

I don't want to argue or be rude, but I think it's just really obvious that the wheels from factory on M cars are not fully forged. Can BMW legally say they are forged in marketing? Yes. They are flow-forged, but that doesn't actually mean anything. Their wheels are flow formed.

The point I want to make here is that if the G87 M2 wheels truly are cast, they will weigh upwards of 28/29 pounds, especially true for the 20 inch rear. If you upgrade to a nice set of flow formed wheels or forged wheels, you're going to save A TON of weight. The driving characteristics of the car will be greatly improved. As someone who was going to upgrade to aftermarket wheels anyways, this is an awesome benefit! Get better looking wheels and get to save even more unsprung weight

Oh! And I'll be getting my G87 in 3 weeks and changing out the wheels ASAP. I'll get the stock cast wheels weighed and compare to a nice set of fully forged wheels.

zero21 · 03-20-2023, 05:10 PM

Quote:

Originally Posted by Daily Downshift

Your argument is hurting my brain, you couldn't be more incorrect here man. Please do some research on fully forged wheels vs what manufacturers call "forged" or more correctly named, flow formed. FULLY forged is a completely different ball park when it comes to weight and pricing.

The ironic thing here is that I made no argument and stated nothing about BMW's wheels being forged vs flow formed; I simply refuted a poorly designed argument and explained why it was poor.

There are tons of products on the market that are forged that weigh 23-30lbs. They can be one piece, two piece, or three piece. Even most of the wheels BBS makes are over 23lbs. Man honestly...telling me to do research

DailyDownshift · 03-20-2023, 05:22 PM

Quote:

Originally Posted by zero21

The ironic thing here is that I made no argument and stated nothing about BMW's wheels being forged vs flow formed; I simply refuted a poorly designed argument and explained why it was poor.

There are tons of products on the market that are forged that weigh 23-30lbs. They can be one piece, two piece, or three piece. Even most of the wheels BBS makes are over 23lbs. Man honestly...telling me to do research

I'm talking about your comment quoting me where you said: "I'm pretty sure the forged wheelsets are fully forged, not "flow formed"" I think that's incorrect and I posted some specs/weights above which lead me to believe that's the case. If you have any insight as to why you think BMW's "forged" are fully forged, please do share.

MmmmmM2 · 03-20-2023, 05:29 PM

788 M2C wheels are forged, and heavy as hell, and a bitch to clean. Just thought I'd chime in with my hatred towards them.

DailyDownshift · 03-20-2023, 05:34 PM

Quote:

Originally Posted by MmmmmM2

788 M2C wheels are forged, and heavy as hell, and a bitch to clean. Just thought I'd chime in with my hatred towards them.

How could they possibly be forged and so heavy? It doesn't make any sense at all to me.

MmmmmM2 · 03-20-2023, 05:45 PM

Quote:

Originally Posted by Daily Downshift

How could they possibly be forged and so heavy? It doesn't make any sense at all to me.

Well, that's what I was always told. I haven't weighed them myself.

Tag · 03-20-2023, 05:48 PM

Quote:

Originally Posted by MmmmmM2

Well, that's what I was always told. I haven't weighed them myself.

They're heavy AF because they have ten double spokes.

zero21 · 03-20-2023, 05:49 PM

Quote:

Originally Posted by Daily Downshift

How could they possibly be forged and so heavy? It doesn't make any sense at all to me.

That's exactly my point. You two knuckleheads equate forging with lightweight. And while that is often the case, it's not always. Wheel companies that are legit make wheels that are strong, and that requires material which can mean more weight based on desired aesthetics.

Reference HRE, BBS, etc.

MmmmmM2 · 03-20-2023, 06:05 PM

Quote:

Originally Posted by Tag

They're heavy AF because they have ten double spokes.

My wheels were that clean once...When I picked up the car from the dealership.

DailyDownshift · 03-20-2023, 06:10 PM

Quote:

Originally Posted by Tag

They're heavy AF because they have ten double spokes.

The spokes might explain it, but what about 437M's being a lot heavier than any forged wheels I've seen?

Tag · 03-20-2023, 06:19 PM

Quote:

Originally Posted by Daily Downshift

The spokes might explain it, but what about 437M's being a lot heavier than any forged wheels I've seen?

I wasn't debating forged vs flow formed, just pointing out why they're heavier compared to the 473M wheels.

But please, don't let me stop you from continuing with that.

aerobod · 03-21-2023, 12:56 AM

One issue here is not comparing wheels with the same load rating.

I couldn’t find the specific load rating for the 827M wheels, but the 437M wheels on the F87 have the 815kg rating on the back of the spokes

The BBS FI-R has a 620kg load rating and the Apex VS-5RS has a 725kg rating. The wheel weight is going to be fairly proportional to the load rating, for the same forming method.

DailyDownshift · 03-21-2023, 01:27 AM

Quote:

Originally Posted by aerobod

One issue here is not comparing wheels with the same load rating.

I couldn’t find the specific load rating for the 827M wheels, but the 437M wheels on the F87 have the 815kg rating on the back of the spokes

The BBS FI-R has a 620kg load rating and the Apex VS-5RS has a 725kg rating. The wheel weight is going to be fairly proportional to the load rating, for the same forming method.

Good point. I tried looking for load rating on the 788M's and 763M's but couldn't find anything.

M2Cmtl · 04-13-2023, 02:46 PM

Speaking of cost cutting, does the G87 only have the driver side diming mirror like the F87? Always thought that was a super cheap move from BMW.

Squidget · 04-13-2023, 06:18 PM

Quote:

Originally Posted by M2Cmtl

Speaking of cost cutting, does the G87 only have the driver side diming mirror like the F87? Always thought that was a super cheap move from BMW.

In NA? From bmwusa's site, standard options list: "Automatic-dimming interior rear-view mirror and driver's-side exterior mirror"

So looks like driver side only.

swagon · 04-16-2023, 02:19 AM

Quote:

Originally Posted by Squidget

In NA? From bmwusa's site, standard options list: "Automatic-dimming interior rear-view mirror and driver's-side exterior mirror"

So looks like driver side only.

In Europe, auto dimming on the driver's side only has been in effect since 03/2016 and the "updated" was for all BMW models.

Audi, VW and Mercedes are the same.

baron95 · 07-30-2023, 03:59 PM

According to the video below the 930M wheels weigh:

27.8 lbs front

30.4 lbs rear

The G80/82 wheels are:

824M
9.5x18 ET20: 9.8 kg / 21.6 lbs
10.5x19 ET20: 11.1 kg / 24.5 lbs

826M
9.5x19 ET20: 10.8 kg / 23.8 lbs
10.5x20 ET20: 11.5 kg / 25.4 lbs

So you can save ˜25lbs just picking up some take off G80/G82 wheels.

VIERsr · 07-31-2023, 12:05 AM

Quote:

Originally Posted by baron95

According to the video below the 930M wheels weigh:

27.8 lbs front

30.4 lbs rear

The G80/82 wheels are:

824M
9.5x18 ET20: 9.8 kg / 21.6 lbs
10.5x19 ET20: 11.1 kg / 24.5 lbs

826M
9.5x19 ET20: 10.8 kg / 23.8 lbs
10.5x20 ET20: 11.5 kg / 25.4 lbs

So you can save ˜25lbs just picking up some take off G80/G82 wheels.

Which video?

Ravenseal · 07-31-2023, 04:39 PM

Quote:

Originally Posted by baron95

According to the video below the 930M wheels weigh:

27.8 lbs front

30.4 lbs rear

The G80/82 wheels are:

824M
9.5x18 ET20: 9.8 kg / 21.6 lbs
10.5x19 ET20: 11.1 kg / 24.5 lbs

826M
9.5x19 ET20: 10.8 kg / 23.8 lbs
10.5x20 ET20: 11.5 kg / 25.4 lbs

So you can save ˜25lbs just picking up some take off G80/G82 wheels.

G8x guys ask a lot of money for their take offs. You might as well order Apex forged wheels and save 45lbs for the same price.

baron95 · 08-03-2023, 11:27 PM

Quote:

Originally Posted by VIERsr

Which video?

Sorry, edited to include the video. Fronts at ~1:10 mark, rears at ~1:45 mark.

baron95 · 08-03-2023, 11:30 PM

Quote:

Originally Posted by Ravenseal

G8x guys ask a lot of money for their take offs. You might as well order Apex forged wheels and save 45lbs for the same price.

Is that 45lbs savings even a remote possibility?

I want to run a square set up, interested in the lightest wheels that would fit a 295 or 285 square set with no spacers.

03-20-2023, 05:01 PM	#90
DailyDownshift Battle Tactician 453 Rep 306 Posts Drives: TR G87 Join Date: Jan 2021 Location: Toronto, Canada iTrader: (0)	This is my last post here because I don't want to get into a keyboard battle on the internet over something so trivial. 763M "forged" wheels for OG M2 F87: Front 19x9, 22.54lbs. Weighed them myself at a shop using an accurate scale. *These are the LIGHTEST wheels BMW has put on any recent M car FROM FACTORY* MRR FS01 Flow Formed wheels for OG M2 F87: Front 19x9.5, 22.4lbs. Weighed them myself at a shop using the same accurate scale. *These are flow formed, NOT forged wheels, that are half an inch wider than the 763M wheels but weigh slightly less..* Now let's look at one of the cheapest FULLY FORGED options on the market: APEX VS-5RS Fully Forged BMW Wheels: 20x11, 21.7lbs. I purposely went bigger AND wider to make my point here. These are $900 per wheel, so about $3600 for a set. *Somehow these forged wheels are larger and wider than the 763M "forged"* wheels (BMW's lightest factory wheel), yet a full pound lighter..** I don't want to argue or be rude, but I think it's just really obvious that the wheels from factory on M cars are not fully forged. Can BMW legally say they are forged in marketing? Yes. They are flow-forged, but that doesn't actually mean anything. Their wheels are flow formed. The point I want to make here is that if the G87 M2 wheels truly are cast, they will weigh upwards of 28/29 pounds, especially true for the 20 inch rear. If you upgrade to a nice set of flow formed wheels or forged wheels, you're going to save A TON of weight. The driving characteristics of the car will be greatly improved. As someone who was going to upgrade to aftermarket wheels anyways, this is an awesome benefit! Get better looking wheels and get to save even more unsprung weight Oh! And I'll be getting my G87 in 3 weeks and changing out the wheels ASAP. I'll get the stock cast wheels weighed and compare to a nice set of fully forged wheels.
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03-20-2023, 05:29 PM	#93
MmmmmM2 Colonel 2598 Rep 2,434 Posts Drives: 2021 M2C Join Date: Mar 2019 Location: Claremont, CA iTrader: (0) Garage List 2016 Mazda CX-5 [0.00] 2021 BMW M2C [0.00]	788 M2C wheels are forged, and heavy as hell, and a bitch to clean. Just thought I'd chime in with my hatred towards them.
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03-21-2023, 12:56 AM	#101
aerobod Car Geek 3708 Rep 3,621 Posts Drives: Caterham R500, M2-G87, Macan S Join Date: Mar 2008 Location: Calgary iTrader: (0)	One issue here is not comparing wheels with the same load rating. I couldn’t find the specific load rating for the 827M wheels, but the 437M wheels on the F87 have the 815kg rating on the back of the spokes The BBS FI-R has a 620kg load rating and the Apex VS-5RS has a 725kg rating. The wheel weight is going to be fairly proportional to the load rating, for the same forming method.
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04-13-2023, 02:46 PM	#103
M2Cmtl Major 922 Rep 1,156 Posts Drives: 21 Q7 & 22 4XE Join Date: Sep 2013 Location: Montreal iTrader: (0)	Speaking of cost cutting, does the G87 only have the driver side diming mirror like the F87? Always thought that was a super cheap move from BMW. __________________ 2020 M2C 24.04.2020 delivery - Sold 24.08.22
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07-30-2023, 03:59 PM	#106
baron95 Captain 1725 Rep 891 Posts Drives: BMW G87 M2 Join Date: Feb 2023 Location: CT iTrader: (0)	According to the video below the 930M wheels weigh: 27.8 lbs front 30.4 lbs rear The G80/82 wheels are: 824M 9.5x18 ET20: 9.8 kg / 21.6 lbs 10.5x19 ET20: 11.1 kg / 24.5 lbs 826M 9.5x19 ET20: 10.8 kg / 23.8 lbs 10.5x20 ET20: 11.5 kg / 25.4 lbs So you can save ˜25lbs just picking up some take off G80/G82 wheels. __________________ G87 M2 BSM On Order Last edited by baron95; 08-03-2023 at 11:26 PM..
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