[iCARMIX]

     Featured on BIMMERPOST.com

Electric vehicles tend to be heavier than traditional gasoline cars, with the iX M60 weighing approximately 2.6 tons.
For braking performance, many owners opt for the factory M Performance or M Power brake systems.
However, for those wanting to go further, upgrading to INSPEED carbon-ceramic brake discs is a worthwhile consideration.

Carbon-ceramic discs are made from materials like carbon fiber and silicon carbide, offering certain advantages over conventional cast iron discs.
In this case, the original 395mm front discs weigh about 16.89 kg, while the rear 370mm discs are around 8.58 kg.
In contrast, the INSPEED carbon-ceramic discs weigh only approximately 7.69 kg and 4.85 kg, resulting in an overall weight reduction of about 50.8%.

Reducing unsprung weight—essentially, the mass that the suspension supports—directly improves a vehicle's handling.
Lighter components lead to quicker and more responsive reactions to road conditions, enhancing the driving experience during acceleration, braking, and cornering.

Check out iCARMIX shop for more info:
https://icarmix.com/?s=iX+M60&post_type=product

[ubercruise]

While I can appreciate the desire to reduce weight in most instances, I'm not sure this 3 ton SUV is going to get a ton of weight benefit from 30lbs less lol.

[exxxviii]

Originally Posted by ubercruise

While I can appreciate the desire to reduce weight in most instances, I'm not sure this 3 ton SUV is going to get a ton of weight benefit from 30lbs less lol.

Unsprung mass reductions make a massive difference and are legit.

[thebishman]

Originally Posted by exxxviii

Unsprung mass reductions make a massive difference and are legit.

It does in a vehicle with ‘sporting credentials’, and I’ve owned a couple of cars with CCMs and love them for both street and track duty. But come on, on an iX?
You are not going to notice any significant differences in handling, and of course with most retardation duties being handled via regeneration, there will be no differences in braking performance either.

[exxxviii]

Originally Posted by thebishman

It does in a vehicle with ‘sporting credentials’, and I’ve owned a couple of cars with CCMs and love them for both street and track duty. But come on, on an iX?
You are not going to notice any significant differences in handling, and of course with most retardation duties being handled via regeneration, there will be no differences in braking performance either.

I'll grant that many folks may not notice in the iX. But at the same time, 30 lbs. is a substantial change that affects how the car feels over uneven surfaces. And yeah, zero material difference in braking performance.

[ubercruise]

Originally Posted by exxxviii

Unsprung mass reductions make a massive difference and are legit.

Sure, but I'm speaking specifically to the iX. I don't think most would utilize or notice the difference in unsprung mass in this use case, and definitely don't need CCMs. Most people with actual sports cars don't even fully utilize them.

[iCARMIX]

Originally Posted by NomoTesla

Sorry, but I do not read Chinese or pay in HK$ or communicate with people using Whatsapp which is what scammers use.

I'm just a dude with a garage in Hong Kong. I don't really post here to sell, although we do ship globally. I have been posting here before, on a personal account, but I wanted to use watermark on my photos, because having a designer doesn't come for free, and I had to pay sponsorship on the forum in order to do that, so I went all in. I mainly post here out of pure passion for cars, and hey if it gets my website a little exposure, I'll take it. Speaking of which, you can go at the top of the page, and switch the currency to USD for convenience. And hey, let's keep "race" on the track only

[Louis_BE]

Cool upgrade, the real question is, do they impact efficiency … that much weight reduction in a wheel kan easily give 5 to 10% better efficiency (granted smaller wheels are not only about weight, hence the question)

[thebishman]

Originally Posted by Louis_BE

Cool upgrade, the real question is, do they impact efficiency … that much weight reduction in a wheel kan easily give 5 to 10% better efficiency (granted smaller wheels are not only about weight, hence the question)

Isn’t ‘Rolling Resistance’ of the tyre the main determinant of a wheel’s efficiency, based on tyre size and material characteristics? I do not think that removing 2-4Kgs from each corner of the vehicle from installing CCMs will make an iota of difference in efficiency.

In a vehicle that doesn’t weigh 3 tons, handling can and generally will be enhanced by replacing iron rotors with CCMs; that doesn’t enhance ‘efficiency’ per se.

[Windshieldfarmer]

I’ve always thought the biggest benefit from a reduction in rotational mass was in the area of improved handling characteristics. Given the use case for an IX I suspect most of us would not normally notice a lot of difference.

It is my understanding that ceramic brakes and pads tend to be noisy which could be a negative for those who value quiet braking.

[A418t81]

CCMs have their place. I have several vehicles with them. On an iX? You got to be kidding me.

[Louis_BE]

Originally Posted by thebishman

Isn’t ‘Rolling Resistance’ of the tyre the main determinant of a wheel’s efficiency, based on tyre size and material characteristics? I do not think that removing 2-4Kgs from each corner of the vehicle from installing CCMs will make an iota of difference in efficiency.

In a vehicle that doesn’t weigh 3 tons, handling can and generally will be enhanced by replacing iron rotors with CCMs; that doesn’t enhance ‘efficiency’ per se.

It are multiple factors, weight is also one, same size lighter wheels can have an impact, but more factors play, aero is also important, I do not expect u highe impact, but I’m curious to learn if there is any … unsprung weight is important, also for consumption …

[Pictor]

This seems to be a regular post on here from the OP. In the past it was an attempt at selling improved stopping power. Now it's reduced (unsprung) weight. The messaging is improving but not sure of the benefit other than reducing unsprung weight. A ~14 lb reduction per corner is not trivial but I question the cost benefit for a heavy EV SUV.

[thebishman]

Originally Posted by Windshieldfarmer

I’ve always thought the biggest benefit from a reduction in rotational mass was in the area of improved handling characteristics. Given the use case for an IX I suspect most of us would not normally notice a lot of difference.

It is my understanding that ceramic brakes and pads tend to be noisy which could be a negative for those who value quiet braking.

As long as you follow the break-in procedure, CCMs are virtually silent and of course do not shed dust like crazy all over your wheels. The rotors as long as used for street use will last the life of the vehicle essentially, and the pads are also long lived, although will need replacing over time.

Caveat: again, so much of retardation in an EV is performed via regeneration, that I have no doubt that our OEM rotors and pads will probably last the ‘lifetime’ of the iX also. In fact even brake dust is markedly reduced, so there’s not too much need for spending any money on ‘upgraded brakes’.

That being said, it looks as if the OP is selling Surface Transform CCMs, which are very high quality. So if you like the look and money is no object, then why not?

[ggalanis]

Originally Posted by thebishman

I have no doubt that our OEM rotors and pads will probably last the ‘lifetime’ of the iX also.

I know that Tesla sold customers on the idea that their brakes will NEVER need to be replaced as opposed to a more realistic view that they need replacement x times less often than on a gas car.

Although the pads and rotors should last a very long time in the iX, you should expect to need to replace them eventually due to corrosion, especially in an area where salted wet roads are the norm for the winter. In fact if you are a master of 1PD, and almost never use the friction brakes at all, they are more likely to have rust issues and seize than if you use them regularly. They won't wear out, they'll corrode instead.
Maybe the iX forces itself to apply friction brakes every now and again even if you didn't "ask" for it to mitigate the issue.

This happens all the time to people who don't drive a lot in the winter around here and they are caught off guard cause they thought that not driving their cars would make their brakes last forever. That rust that develops on the rotors and other moving parts needs to be removed regularly.

[thebishman]

Originally Posted by ggalanis

I know that Tesla sold customers on the idea that their brakes will NEVER need to be replaced as opposed to a more realistic view that they need replacement x times less often than on a gas car.

Although the pads and rotors should last a very long time in the iX, you should expect to need to replace them eventually due to corrosion, especially in an area where salted wet roads are the norm for the winter. In fact if you are a master of 1PD, and almost never use the friction brakes at all, they are more likely to have rust issues and seize than if you use them regularly. They won't wear out, they'll corrode instead.
Maybe the iX forces itself to apply friction brakes every now and again even if you didn't "ask" for it to mitigate the issue.

This happens all the time to people who don't drive a lot in the winter around here and they are caught off guard cause they thought that not driving their cars would make their brakes last forever. That rust that develops on the rotors and other moving parts needs to be removed regularly.

I strongly suspect that when reversing the brakes are used; hence mitigating issues with rust on the iron rotors, and without a doubt during rain the pads are gentled applied occasionally just to remove excess water from the pad/rotor interface; (this is SOP for many cars, and I can’t believe BMW wouldn’t choose to do so).

If one were to keep the iX a long time, meaning >100K miles, I’d lay money down that the rotors would still be in great shape and perhaps you might have had to replace the pads x1. Further if the car is well maintained, meaning kept clean and parked inside for most of its life, the braking components will do just fine.

[iCARMIX]

Originally Posted by Pictor

This seems to be a regular post on here from the OP. In the past it was an attempt at selling improved stopping power. Now it's reduced (unsprung) weight. The messaging is improving but not sure of the benefit other than reducing unsprung weight. A ~14 lb reduction per corner is not trivial but I question the cost benefit for a heavy EV SUV.

Hi! Thanks for following my activity. I assure you I have plenty of local customers in Hong Kong. I post here based on what mods we do, it's not necessarily something I choose, it's more like, what we get at our shop. Of course we do ship globally, but that's just not the purpose of these posts. Maybe a little exposure on my website haha

[KRS_SN]

I drive in D mode perhaps a good idea long term re discs. Last time brake pads were checked at 32k miles they had under 10% wear on them.

[ubercruise]

Originally Posted by KRS_SN

I drive in D mode perhaps a good idea long term re discs. Last time brake pads were checked at 32k miles they had under 10% wear on them.

I think the iX does regenerative braking even if you hit the brake in D mode until the actual brakes are needed, so to me it wouldn't be too different from B mode, although it might be easier to perform a harder stop that activates the brakes in D mode.

[KRS_SN]

Originally Posted by ubercruise

I think the iX does regenerative braking even if you hit the brake in D mode until the actual brakes are needed, so to me it wouldn't be too different from B mode, although it might be easier to perform a harder stop that activates the brakes in D mode.

True it may just create enough friction in the last 15% of braking to keep the pads and rotors from rust and crud.

[bigegges]

Sus

[Quadruple VANOS]

Originally Posted by Windshieldfarmer

I’ve always thought the biggest benefit from a reduction in rotational mass was in the area of improved handling characteristics. Given the use case for an IX I suspect most of us would not normally notice a lot of difference.

It is my understanding that ceramic brakes and pads tend to be noisy which could be a negative for those who value quiet braking.

Yeah everyone immediately points to unsprung weight reduction, when reducing rotational mass is arguably more impactful. Any serious cyclist has intimate experience with the positive effects of reducing rotational mass.