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      08-05-2018, 05:12 AM   #1
MR.
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Lightweight wheels - what is our choice?

Guys, we all know the wheels are an issue when it comes to weight. We want to go lighter on a competition car, not heavier. I want to go considerably lower to counteract the 16 kg of extra weight that the brake kit adds.

I had a look around and I was a bit fooled by the fact that the BBS C-HR wheels are so freaking heavy. I was expecting lightweight from BBS, not that they are touching 26/27 lbs.

The aim is to go for 8-9 kg which is roughly 18-20 lbs to make a real difference. The 763M wheels are pretty much brilliant for that, but there must be more options in the market: 9.41 kg / 20.75 lbs.

What options do we have guys? Any thoughts?

MR
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      08-05-2018, 05:17 AM   #2
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BBS FIR.

Just no Volks please.
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      08-05-2018, 05:17 AM   #3
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Basically as follows

HRE alle forged - they all are 7-9 kgs, but expansive
BBS FIR - my favourite ones! Only 7.5 kgs also expansive

Then japanese wheels are also very light - yokohama advan wheels for instance.

Usually if you go forged you cannot go wrong, only to mention these are expansive.

P.s.: I doubt 788 wheels are forged.
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      08-05-2018, 05:25 AM   #4
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Quote:
Originally Posted by Veebee View Post
Basically as follows

HRE alle forged - they all are 7-9 kgs, but expansive
BBS FIR - my favourite ones! Only 7.5 kgs also expansive

Then japanese wheels are also very light - yokohama advan wheels for instance.

Usually if you go forged you cannot go wrong, only to mention these are expansive.

P.s.: I doubt 788 wheels are forged.
FI-R fits on a M2 so that looks like an option. I really like that wheel.

MR
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      08-05-2018, 05:43 AM   #5
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      08-05-2018, 05:44 AM   #6
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Quote:
Originally Posted by Veebee View Post
Basically as follows

HRE alle forged - they all are 7-9 kgs, but expansive
BBS FIR - my favourite ones! Only 7.5 kgs also expansive

Then japanese wheels are also very light - yokohama advan wheels for instance.

Usually if you go forged you cannot go wrong, only to mention these are expansive.

P.s.: I doubt 788 wheels are forged.
FI-R fits on a M2 so that looks like an option. I really like that wheel.

MR

I most probably will go this way, they are beuatiful
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      08-05-2018, 06:23 AM   #7
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OZ Ultraleggera or Leggera for me...
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      08-05-2018, 06:51 AM   #8
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Quote:
Originally Posted by MR. View Post
FI-R fits on a M2 so that looks like an option. I really like that wheel.

MR
Blimey. 15% of the price of the car for something you won’t notice unless you are on a race track at ten tenths! They look quite nice though.

Don’t forget to weigh the tyres too. They can be 2kg+ difference per tyre depending on brand and type.
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      08-05-2018, 06:59 AM   #9
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Like the 5 spokes Advan Racing GT but concern that they might not look right on the M2C
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      08-05-2018, 07:12 AM   #10
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My vote is for Volks, that's the route I'm going...
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      08-05-2018, 08:09 AM   #11
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Quote:
Originally Posted by Veebee View Post

Usually if you go forged you cannot go wrong, only to mention these are expansive.

P.s.: I doubt 788 wheels are forged.
I appreciate skepticism, but I think your doubt is very much misplaced here. BMW advertises the 788 wheels as being "forged". BMW has a worldwide reputation, and would risk a gigantic class-action lawsuit if they were supplying cast wheels instead of forged wheels as advertised.

However, when I am at the BMW Welt on September 17th, I will ask them for proof -- in whatever form they can supply -- that the 788 wheels are forged.

And if you are right, then when we next visit Prague, the beer is on me! BTW, I bought a set of Audi Q5 takeoff wheels (18") to use as my winter wheels for my 2010 Audi S4, and they were made in the Czech Republic.
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      08-05-2018, 08:21 AM   #12
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Quote:
Originally Posted by BOhio View Post
I appreciate skepticism, but I think your doubt is very much misplaced here. BMW advertises the 788 wheels as being "forged". BMW has a worldwide reputation, and would risk a gigantic class-action lawsuit if they were supplying cast wheels instead of forged wheels as advertised.

However, when I am at the BMW Welt on September 17th, I will ask them for proof -- in whatever form they can supply -- that the 788 wheels are forged.

And if you are right, then when we next visit Prague, the beer is on me! BTW, I bought a set of Audi Q5 takeoff wheels (18") to use as my winter wheels for my 2010 Audi S4, and they were made in the Czech Republic.
Yeah, like they didn’t lie about the N55 closed deck or the comp solid rear suspension bushes 🙄🙄
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      08-05-2018, 08:24 AM   #13
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We will have Apex SM-10 and FL-5 available at the end of the year too.
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      08-05-2018, 08:36 AM   #14
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Quote:
Originally Posted by Davil View Post
Blimey. 15% of the price of the car for something you won’t notice unless you are on a race track at ten tenths! They look quite nice though.
I hear you, mate. And what about the blokes who endorse the protective plastic film ("clear bra") and various paint protection coatings, which can cost USD $5k if you do the complete car?

Some of the people who complain about the price increase of the M2C vs. the original -- USD $4.5k -- are the same ones planning to spend thousands more on such dubious upgrades. What does $4.5k get you vs. 2018? 40 more HP, 40 more LB FT of torque, better brakes, and the mustache grille.

People, that is a bargain! The Porsche 911 Carrera S costs $14k more than the regular 911 Carrera. And for that you get 50 more HP and 37 more LB FT of torque.

Speaking of the 788 wheels and their detractors, and speaking of Porsche, check this: https://www.roadandtrack.com/car-cul...-997-for-sale/

I wonder how much they weigh?
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      08-05-2018, 08:41 AM   #15
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Quote:
Originally Posted by Japper69 View Post
Yeah, like they didn’t lie about the N55 closed deck or the comp solid rear suspension bushes 🙄🙄
I'm not too worried. Beer is inexpensive in the Czech Republic...
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      08-05-2018, 08:42 AM   #16
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I’m reusing my Dinan wheel from e46 m3
Just need a 10mm spacer up front
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      08-05-2018, 08:59 AM   #17
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Quote:
Originally Posted by Veebee View Post

P.s.: I doubt 788 wheels are forged.
Why you say this?

I’d be very disappointed if they were not forged. They are not pretty, not light, but has to be tough no? I live in pot hole city.
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      08-05-2018, 10:09 AM   #18
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This Volk Racing G25 actually looks very nice on the M4 (https://c1.staticflickr.com/5/4235/3...92d051f3_o.jpg)

Wondering how they will look on the M2C...
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      08-05-2018, 01:37 PM   #19
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Not sure why BMW continues to put heavier wheels on Competitions, first E9x, then F8x, now F87.

Any budget or price not an issue?
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      08-05-2018, 01:48 PM   #20
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Quote:
Originally Posted by Karmic Man View Post
This Volk Racing G25 actually looks very nice on the M4 (https://c1.staticflickr.com/5/4235/3...92d051f3_o.jpg)

Wondering how they will look on the M2C...
Do these come in stock wheel widths and offsets? I couldn't find any stock sizes.
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      08-05-2018, 02:07 PM   #21
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Quote:
Originally Posted by AlpsRider View Post
Do these come in stock wheel widths and offsets? I couldn't find any stock sizes.
Don't think the M2 can handle F8x sizes/offsets.

https://www.ravspec.com/shop/rays-vo...5bmwm3m4f80f82


ZE40 will fit.

https://www.ravspec.com/shop/rays-vo...0-1991910bmwm2
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      08-05-2018, 02:35 PM   #22
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Carbon revolution wheels. Probably the best in terms of sizing and weight savings.
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