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RivnSoon

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The effort and time he took to do the write up far outweighs your credibility so far. You want to level up your credibility with some verifiable documented evidence supporting your criticism of the pads he used?
I'm not feuding here. Apologies to @babalegba for his time and effort.
Years of track use inform my brake pad choices. Didn't someone find out that the OEM are ferrodo DS 2500s? I can get behind those...
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R1Thor

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The effort and time he took to do the write up far outweighs your credibility so far. You want to level up your credibility with some verifiable documented evidence supporting your criticism of the pads he used?
Of course not.

He thinks wheelbarrows have brakes!!
 

R1Thor

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I'm not feuding here. Apologies to @babalegba for his time and effort.
Years of track use inform my brake pad choices. Didn't someone find out that the OEM are ferrodo DS 2500s? I can get behind those...
I don't have data on one of those brands versus another, but for everyone's consideration when it comes to *quality* of brake pads and why it IS important:



Any/all brake pads will be required to meet DOT regulations and minimum performance specifications for safety and use, obviously. But not all brakes are created equal.
But again to emphasize: I don't have data on the brakes OP used. They very well could be perfectly excellent. Regardless, assuming OP isn't using these for extreme use (threshold heavy trailers, track use, etc), it's verily unlikely it'd matter, to be honest. As again, the brakes he is using will have passed all compliance and regulatory performative requirements.
 
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babalegba

babalegba

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I'm not feuding here. Apologies to @babalegba for his time and effort.
Years of track use inform my brake pad choices. Didn't someone find out that the OEM are ferrodo DS 2500s? I can get behind those...
I found no info on the OEMs, which was the main reason for my post. Someone also mentioned - all these pads are DOT approved. I drive quite a lot (almost 30k miles/year) and these pads fimy daily use. I don’t track or do extreme off roading etc. I own a motorcycle but I don’t pop wheelies on that either. These would work fine for me.

I’m also pretty handy (eg built my deck by myself). If my needs do change, it would simply be another fun hour to install any pads/rotors I want.
 

csharp

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Just need someone to confirm the process for the rears, and I’ll be all set!
Sounds like YOU could be that person. Thanks for taking the leap ;)
 

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mudito

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I'm not feuding here. Apologies to @babalegba for his time and effort.
Years of track use inform my brake pad choices. Didn't someone find out that the OEM are ferrodo DS 2500s? I can get behind those...
Track pads... I hear you. I use Carbotech in my Ford Focus RS (450whp). They last me about ~4500 miles and ate a rotor in the same period. Amazing brake power!.

BUT.... We are talking about a truck here :) Noise, dust are treated differently and also high-heat tolerances aren't that much of a requirement (yeah, I know, downhill ... but I'm talking about 99.99% of the use cases) and rotors longevity is appreciated.

When we talk about those uses, the difference between a $50 to a $120 pad isn't that much unless you want to have all the disadvantages of a $200 set of pads.

How much do you think the OEM really cost? Hint: Probably about $50 without the brand markup :)

cheers!
 

crashmtb

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Higher wear NOTWITHSTANDING, Brakes should ABSOLUTELY NOT wear unevenly.

From an engineering perspective, this is a floating caliper. It 'glides' on the pins that OP showed in his post. It should be imparting equal pressure to both sides of the system. Not only for 'even wear' but, as designed, the intention and force vectors of the brakes squeezing into the caliper and creating a thermodynamic bond that exchanges kinetic for potential energy via thermodynamic conduction ala friction.
the rear brakes are single piston floating calipers.
The front brakes are not floating calipers. They are fixed, opposed piston. The brake pads slide on the smaller pair of pins, the larger central pin retains the pads in the caliper.

pad wear like this suggests the pistons on one side are sticking. Should be a warranty thing if that’s the case.
 

shap

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Yup. $800 isn’t out of line. BMW dealers charge more than that… and not even for Brembos.



Good point regarding rears… The service tool site has a parking brake release kit. https://rivianservicetools.com/Catalog/Search?term=Brake
Not by much - 2k for all pads and rotors on X5. But not Brembos.

The thing that is not clear to me - is why there is a need to change them - even on my X5 45e, I am at 9mm (12mm new) after 50k miles. And it has much less regen power.

All my friends with Tesla never replaced their brakes. Seems Rivian uses friction breaks much more than it looks like.
 

UnsungZero_OldTimeAdMan

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Not by much - 2k for all pads and rotors on X5. But not Brembos.

The thing that is not clear to me - is why there is a need to change them - even on my X5 45e, I am at 9mm (12mm new) after 50k miles. And it has much less regen power.

All my friends with Tesla never replaced their brakes. Seems Rivian uses friction breaks much more than it looks like.
Potential reasons covered. Inadequate lubrication of pins, leading to uneven and accelerated wear. Plus, what you overlooked in all your examples, weight difference of the vehicles. And all these cars may not have the same brake pad compound?
 

shap

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Potential reasons covered. Inadequate lubrication of pins, leading to uneven and accelerated wear. Plus, what you overlooked in all your examples, weight difference of the vehicles. And all these cars may not have the same brake pad compound?
Can not say about the compound, but X5 breaks are VERY good. As for weight - X5 45e is about 5300 pounds. Pretty heavy as well.

I guess the problem is either with stacked pins and/or assistance breaking feature. Also, seems adaptive CC use breaks as well
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