Relentless Autosports: 2 piece F&R rotor set for the Akebono brake kit
 

This group buy is for the Relentless Autosports front and rear, light weight 2 piece floating rotor kit for the G37s and the 370Zs equipped with the Akebono brake system.

At just about 19 lbs. each, these are the only light weight full floating rotors on the market for these brakes, and also the only two piece rotors available (at all) for the front and rear that are designed to work in conjunction with the 370Z/ G37s as well as other cars that have the front caliper adapters and are fitted with these popular Akebono brake kits.

These RA two piece rotors are made 100% here in the USA with the highest grade of materials available. No corners were cut when designing everything from the heat treated & tempered, balanced & stress relieved, gas vented (slotted), full floating, directionally & rotational pillar veined cast iron/ steel allow blend of the outer rotor, to the hard anodized, aircraft grade CNC machined aluminum center hats with aircraft grade full floating T-Locks & fasteners.

Sure, we could have cut many corners on material & design time to save a little money, but there should be no compromising when it comes to your brake kit. These rotors are the perfect complement to the Nissan equipped Akebono calipers.
Remember, brakes are one of the most significant and often overlooked high performance and safety modifications you can make to your car.



The RA two piece rotor system has SEVERAL advantages over any other rotors available today for this brake kit.

--Light weight rotors will shed SEVERAL pounds of detrimental un-sprung
and rotational weight mass, making the car MUCH more responsive.

--With the self centering, full floating rotor design, it lets the rotor expand
and contract due to heat in a uniformly manner. This way there is much less
probability of the rotors
warping, distorting, cracking, or failing due to the rotors movement during its heat cycles

--Rotors are not only gas vented for more even pad wear, but have rotational & directional
pillar veins that drastically reduce brake heat and brake fade up to 20%.
With less heat from the rotor traveling through the rotor hat and into the
hub bearings, it will increase your wheel bearing life

--You can maximize your long-term investment as the cost of replacing the
rotors when the time comes goes down significantly by only needing to
replace the outer friction surface instead of the whole rotor…. since the
center (hat) is reusable.



(excuse the lack of good pictures, the computer that most of the pictures are on is crashed for now. I will update with more and better pictures shortly)

Here are the rotors with a clear anodized rotor hats
http://i976.photobucket.com/albums/a...shardware1.jpg
http://i976.photobucket.com/albums/a...rscomplete.jpg

Full Floating rotors
http://i976.photobucket.com/albums/a...ntrotors-1.jpg
http://i976.photobucket.com/albums/a...orhardware.jpg

Here is a set with hard black anodized rotor hats (other colors are an option) (sorry about the grainy camera phone pic)
http://i976.photobucket.com/albums/a...Picture046.jpg








Additionally, there is several other available custom order options such as different color anodizing for the rotor hats (+$100), and any color powder coating available for the calipers (+$225), etc.

(For the G35/ 350Z owner, we also make the best hard anodized adapter bracket for the Akebono front calipers to adapt to the Z33…. It is only $299!)

(We will also offer just the fronts or just the rears rotor kits separately but not in this group buy)

These rotors have been street and track tested by our customers as well, and now, by popular demand are available for sale in this group buy…..



This group buy price of $1,749.99 is for all four (2) front & (2) rear Relentless Autosports light weight two piece, full floating performance rotors with all necessary hardware and instructions.
This offer is available for one month or for the first 10 customers, which ever comes first. There is a minimum of 5 people required for the discounted group buy price. Once there is 5 people signed up, the discounted price will be locked in and available, and the deposits will be collected. If it reaches 10 people before the end of the time is up, the group buy will end early and we will start collecting the balances and shipping out the rotor kits.
We will need a minimum 5 people signed up to receive the discount, and 10 people is the maximum on this.
We are requiring a 50% deposit up front once 5 people have signed up. The deposit is transferable but it is refundable only under extenuating circumstances.
The balance, plus shipping (and tax where available) will be due at the end of the group buy, prior to delivery

This is your chance to get the very best performance rotor upgrade available for the Akebono brake kit, period, at a discounted price……..

Place your name on the list below....

1) Brazilbro (from the370Z)

2) gpa7pk (from the370Z)

3)

4)

5)

6)

7)

8)

9)

10)




I think I covered most of it here, but feel free to call, PM, or E-mail with any more questions you may have….

Scott@RelentlessAutosports.com
(619) 654-3585

From what I understand, the stock rotor in the front weighs 30lbs each, so 11lbs off each tire is huge, that's like taking off 24" wheels and installing 18" rays. Good stuff.

I assumed that price is shipped, and tax is for those in CA?

$ 1,700 for 4 brake rotors, they look great & I'm sure they perform, but omg that is alot., lol

^exactly, I don't really track my car, but I would not mind paying half for these if they came with new pads, now that should be the group buy :tup:

These rotors are not for everyone and I understand that.
Please if you are not asking a real question with real interest in these rotors can we please refrain from negative comments, I'd really appreciate it.
We put A LOT of work, time, and money developing these rotors for people really wanting/ needing a quality two piece light weight solution for this brake kit. Here it is..
Believe it or not they are however, very conservative and competitively priced. Just check the prices on any other two piece rotor (let alone a full floating two pieced rotor) of this size. Quality two piece rotors have always been a premium and in this price range if not higher. These rotors are very expensive to make and I assure you there is little profit margin at this price. Plus there is no other two piece rotor solution in the world for the Akebono brake kit. Other companies have been promising these two piece rotors for several months and even years now... and still nobody else has developed a front and rear two piece, not to mention a full floating two piece rotor. It has taken the only other companies who have tried, months and even years to even come up with just the front.... and they still don't have a rear two piece solution.
Doing any checking around at all will show you that these rotors are priced right if not low for what they are and the quality and materials they are made of. These are not any China knock off's of anything, there are 100% designed and made here in the USA. That is very rare and not cheap these days.

:tiphat:
amazing product and under 2k is a great deal! Most people pay up to 2500$ on rims to save less weight then theses offer. Since Ive decided to put F/I on hold till fall and focus on brakes and suspension you'll see me on this list!

I agree. This is a great deal. I will be looking for you when I change out my brake pads..... I have a ways to go however...

Wow those look amazing!

I have the Akebono Kit on my 2006 350Z, and I love it, just the stoptech rotors I have are SOOOO heavy. This would be an awesome alternative, but just the price is way out of my allowance. I paid almost the same price for my full (front and rear) akebono complete kit.

I would definitely consider these if the price was right. But until then (or when there are other options available) I will stick with my stoptech slotted rotors. :(

Will these rotors work ONLY with Akebono calipers and w/e else comes with the Akebono setup ? We couldn't purchase Stoptech/Rotora/AP/Brembo or w/e calipers and mate then with the rotors ?

These are OE size fit rotors, so you can only use aftermarket calipers if they are designed to work with OEM Sport rotors for the 370z. Ie. OE rotor fit, OE Caliper fit = works. RA, am I right in assuming the rear rotors are thicker than stock, and come with a shim to fatten up your rear calipers, or am I wrong? (if so, the OE fit calipers you could buy from AP/Brembo/so on wouldn't be fat enough to fit the rear rotor) HOWEVER, if there is interest, I'm sure RA would make aftermarket calipers as well to fit these

if their rear rotors are thicker, a shim won't do anything. There is only a finite amount of space between both sides of the akebono caliper with pads installed. the only solution with a thicker rotor is thinner pads.

Sorry, I am not too sure what your exact question here is?.... This RA front and rear 2 piece rotor kit is designed precisely for, and fits as an alternative to the VERY heavy OEM rotors that this Akebono brake kit comes with.

Sorry, I am not too clear exactly what you are asking here either, but...
I am not sure of any other caliper option that these rotors will work with, but I would bet that the only ones that they would work properly with are the ones I have specifically designed them to work with, and that is the OEM Akebono calipers that come as an option on the G37s, 370Zs, the FX50, etc.

^^ Correct, for the most part :)

Correct.....but, there actually ended up being a lot more to it than that, I explained most of that to you in our phone conversation a while back. The (patent pending) rear caliper spacer and seal, and everything necessary to fit these much lighter, better heat vented, and slightly thicker rotors to your Akebono caliper equipped car comes with the kit.

LOL, thanks for the vote of confidence there buddy, but it was tough and ambitious enough for me to do all this development for these rotors here for this kit..... I am in no way looking into manufacturing our own calipers here any time in the near future, or even at all. This was taxing and exhausting enough to take on.... for now at least.

This is true, but Equinox is referring to our craftily designed and perfectly CNC formed caliper shim/spacer (and seals) that slightly spaces the two halves of the rear caliper apart perfectly... just enough to allow a much needed thicker, better ventilated 2 piece rear rotor to fit.

Unfortunately I have learned the hard way that this business is full of idea steelers, copy-cats, sheit talkers, and even back stabbers :shakes head:....
Needless to say, I have a lot of company & personal time and money (and favors) invested into this awesome two piece rotor design and am very proud of what we have come up with. It really took some real innovation to design and create this rotor kit, and to make it work with the Akebono calipers and improve over the stock rotors as much as they do.
With all that said, I actually was not wanting to say too much about the design and what it took to make the rear two piece rotor work with the caliper in here just yet in fear of a few potential copy-cat companies stealing the design and idea. I mean, I am sure there are probably at least a couple frustrated companies looking at this right now scratching their head and saying "why didn't we do that"? etc. I mean, honestly if you search around other forums you will see it has taken a few companies almost two years figuring out how to make the front 2 piece rotor and they still haven't figured out how to make the rear two piece work! Some companies have been promising that the front and rear two piece rotors have been coming for almost two years now. Honestly, I understand first hand now what they were up against. These were NOT an easy task.
I am proud of the solution we have. It couldn't work better.


Not necessarily... ;) I wouldn't bet on that :tiphat:

We actually just installed another one of our rotor kits yesterday on another car, a G35 this time. As most of you know, on the older G35's and 350Z's the front Akebono caliper needs an adapter bracket for them to fit..... We make that too. Here are some pics of the adapter we make and the install we did.....
Here is the adapter bracket we make that allows the front Akebono caliper to go on the 350/G35. It is aircraft billit aluminum, CNC machined and hard anodized ($299)
http://i976.photobucket.com/albums/a...Picture043.jpg
http://i976.photobucket.com/albums/a...Picture039.jpg
Here is the install on the G35
http://i976.photobucket.com/albums/a...Picture060.jpg
http://i976.photobucket.com/albums/a...Picture069.jpg
http://i976.photobucket.com/albums/a...Picture071.jpg

Those look mighty nice. would you guys ship to belgium?

Thanks for clarifying Scott!

wow these rotors kick ***!

1) can you confirm that the OEM rotors weigh 30lbs (weight savings of 11lbs/corner)
2) I have heard floating 2-piece rotors can rattle and be noisy...do the RA rotors have this issue?

Sure, as long as you cover shipping we will ship them anywhere.


Yes, we have confirmed (and several others have confirmed) that the front OEM rotors weigh about 29+ lbs each. Our two piece fronts weigh in just at about 19 lbs each, for a weight savings of about 10 lbs each front or about 20 lbs of rotating un-sprung weight in just the front alone. Now, with our thicker rear rotor that is rotationally and directionally pillar veined for better heat dissipation and longer life is still about 3+ lbs lighter than the OEM rears.

And to answer the question..... Actually, these rotors are surprisingly more quiet than I anticipated. They do actually make a slight rattling noise when going over some very sharp bumps at slow speeds (like rail road tracks, cracks in concrete, etc.), but it isn't too bad at all compared to any other floating rotors I have seen. Once you know what the noise is and are used to it, most people hardly notice it all after too long. We have had them on a few cars now and everyone has said that they are very quiet and the rattling isn't too bad with street and track use. Another noticeable point is that the harder track/performance pads tend to always be more prone to break squeal, but so far on these rotors even they are very quiet. That wasn't necessarily our goal, but a cool added bonus, LOL

With a total of more than 26 lbs of ROTATING and UN-SPRUNG weight being shed with these RA rotors.... If you calculate the ratio of all that rotating weight at the brake rotor axis, It is about the equivalent of at least 200 lbs of static weight removed from your car.
Just another example of rotating weight, most 18-19" wheels are about a 10 to 1 ratio of rotating weight vs static weight difference.... So theoretically the rule of thumb has always been if you can shed only 3 lbs off of each wheel (by getting lighter wheels, etc) this would be like removing 120 lbs of (static) weight from your car. 3 lbs X4 wheels x 10= 120 lbs!!

So I assure you that anyone's car that uses these rotors vs the OEM ones... their car will speed up faster, slow down faster, corner faster, and flat out respond better just like if you removed 200 lbs of regular (static) weight from the car. Not to mention there would be less wear and tear on all the cars suspension, steering, and braking components, since it is making less work for the car to carry around, and right where the weight matters to the car the most.
Rotating weight savings has always been the most important and effective weight you can remove on your car.
Hell, I am sure some people in here can testify that when they went to a lighter wheel or even a lighter flywheel, their car felt more responsive, right? Same thing here. I mean most people can definitely notice their car is noticeably more responsive when they are by themselves in it compared to when they have the weight of a passenger, correct??

We did some tests a while ago at a race track where I would run a few consistent laps with a passenger (about 130 lbs) and then run the same laps back to back without the passenger, and then repeat the process again and again for consistency. The results were always almost 2 seconds faster consistently on a track that took about 1 min 19.2 seconds with the passenger and 1 min 17.4 seconds without that passenger. So I hope you see the example I am trying to demonstrate on the weight and its effect on your car.

definitely on my list, but not for the group buy, as its a little out of the budget right now with the body shop bill coming due.

Just finally noticed that this is for the Akebono brake kit.

I feel stupid for not noticing that.

Too bad that I don't have those. so no pretty rotors for me :roflpuke2:

^^^ No problem, we can ad the Akebono caliper set up to our rotor kit (for about another $1200) and presto............. problem solved.. :tup: ;)

Haha.....I need to win the lottery but could you give me more information about the brake kits then?

Since I AM looking at different options since I will be tracking the car in the summer

If you are going to be tracking your car (besides seat time with a good driving instructor) the best mod you will ever be able to make for your car as for reliability, consistency, and safety would be the brakes.
There is a couple of other complete brake kits out there that would probably work for you on the track as well as these with our two piece rotors would, but I am very confident in saying that there is no better brake kit out there for these cars at the price you can get this whole Akebono calipers and our two piece set up for. For information on these rotors look at the first post, if you have any more questions about them that wasn't covered, feel free to ask.
Another plus to this kit that I haven't mentioned is that because of these calipers being OEM Nissan, the brake pressure proportioning is perfect. It is a very good front to rear bias feel. I can't say that same thing about most any other after market brake caliper for these cars.

With the proper pads and brake fluid, these new RA, light weight/ two piece brake rotors legitimately turn this OEM Akebono brake kit into a true, real competition/ track worthy brake kit.... and at a fraction of the price of any comparable complete brake kit out there available for these cars.

More pics.....


front
http://i976.photobucket.com/albums/a...cture072-1.jpg

Rear
http://i976.photobucket.com/albums/a...cture077-1.jpg

Man I would love to have a set of these on the car. By the way Scott, I wrote a little article about these on my website. Thanks for bringing awesome products to the community.

Thank you, I just saw your website, looks good....

Hearing encouraging and kind words like that really means a lot to me, I appreciate it. :tiphat:

Beautiful. Craftsmanship. Bravo!

I'll be the first to commit! Mark me down! We just need 4 more!

Thanks, I appreciate it when people notice.....

Will the Carbotech xp10 front and xp8 rear pads with Motul RBF600 as the brake fluid be a good choice for use with your really great looking rotors? It was suggested to me at the track today to run a seperate set of rotors with bedded pads for track and swap out to the OEM rotors and pads for DD - your thoughts please.

Yes, any brake pad that is out on the market for the 370Zs, G37s, etc that is made for the Akebono (sport) calipers will work with these rotors, naturally.
Since there are many good options available suited for different driving styles and situations, It is best to go with your personal preference and a pad that suits you and your individual driving habits and needs.

In your case, it is the best idea to have a designated street pad for daily driving, and a designated track pad (with a much higher heat range) when at the track. Carbotech's products will be just fine.
The completely changing of the rotors from our RA rotors to the stock ones is not necessary, and might be a little more time consuming than expected as there is more to the process with our rotor kit than just simply changing rotors when changing back to the stock ones. Our RA rotors are also heat treated, stressed relieved and usually much harder than most rotors, so they adapt well to whatever pad you switch to. Unlike softer rotors where pad material gets more deeper in-bedded into the rotor and would require more extensive break-in and sometimes even a slight re-surfacing of the rotors to be optimal when changing to different pads.

As for the Motul RBF600 brake fluid... That along with a few other high quality, high temp brake fluids would be a good choice.

Showed my Z a picture of your rotors and he let me know that I should get a set. Please put on your list.

This is your chance to get the very best performance rotor upgrade available for the Akebono brake kit, period, at a discounted price……..

Place your name on the list below....


1) Brazilbro (from the370Z)

2) gpa7pk (from the370Z)

3)

4)

5)

6)

7)

8)

9)

10)

Great to talk to you and thanks for the description of your floating rotors. I feel very confident that I am getting exactly what I need/want for street and track use. Looking forward to you getting enough orders for our group buy.

How much for the group buy?

When it's time to replace the rotors (for tear and wear). Can they be serviced? can i do the service or i have to send them to you for service? how much the replaceable parts will cost? Or they are not serviceable and i have to buy a new set?

Please read the first post in this thread..... I am sure your questions have already been covered.....
The cost of the outer ring of the rotor "friction ring" and replacement hardware will only be $250 You can purchase the outer rotor and hardware from us and we will send it out to you so you could replace them yourselves. If you are not confident doing so... we can do this for you for free as long as you cover parts and shipping both ways.

AFTER reading the complete first post, feel free to let me know if you have any questions that haven't been covered. Thanks