SKU: 94035167148

GiroDisc 03-06 Mercedes-Benz S65 (W220) Slotted Front Rotors

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Description

GiroDisc 03-06 Mercedes-Benz S65 (W220) Slotted Front RotorsSold priced in pairs Welcome to GiroDisc! Brake rotors have long been the overlooked link in performance car braking systems. Traditional 1 piece brake rotors are heavy and retain heat, diminishing their effectiveness and adding unsprung weight that adversely affects handling. When GiroDisc was founded in 2003, we made it our mission to design and manufacture 2 piece brake rotors that would perform flawlessly at the limits. Our fully floating design


Sold/priced in pairs


Welcome to GiroDisc!

Brake rotors have long been the overlooked link in performance car braking systems. Traditional 1-piece brake rotors are heavy and retain heat, diminishing their effectiveness and adding unsprung weight that adversely affects handling.

When GiroDisc was founded in 2003, we made it our mission to design and manufacture 2-piece brake rotors that would perform flawlessly at the limits. Our fully-floating design uses tension hardware to ensure that our rotors are silent on the street, but ready to go on the track.

By specializing in this area, we can dedicate our efforts to push our engineering and manufacturing to the highest levels in the industry. Customers around the world have found success maximizing the capabilities of their existing brake systems by installing GiroDisc rotors. This often negates the need for a pricier, more complex upgrade like a big brake kit.

GiroDisc is headquartered in Bellingham, Washington, where we design, engineer, manufacture and fulfill orders on site.


The primary purpose of the Girodisc system is to reduce unsprung and overall vehicle weight. The secondary purpose is to increase the ventilation and cooling capacity of the brake disc while retaining it's original dimensions. This is accomplished by using two-piece disc construction. The central hat section of the disc is made from 6061-T6 aircraft specification aluminum.

The disc is made from cast iron, to the same specification and material as used by professional racing organizations. It is a curved vane design, developed in racing to act as a centrifugal pump to force cooling air through the disc. The rotor and hat have a floating mount system, which utilizes high strength alloy steel drive pins, manufactured by Girodisc to our own specifications and cadmium plated for a long lasting corrosion resistance. These pins take the load from braking actions while maintaining the axial and radial float between the hat and disc. The pins are secured by grade 12 cap screws with hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring clips on the rotor side which allow the rotor to grow with heat expansion but eliminate the rattle and noise associated with floating rotors. This float also allows the rotor
to self center between the pads.


Important Questions Answered

Q: What is required to install the Girodisc system?

A: The Girodisc system is a direct replacement for the OE disc.
No modifications are necessary. The disc will bolt directly to the car and work with OE calipers and pads perfectly. Once the Girodisc system is in place, simply replace the cast iron rotor when needed. Some discs are larger in diameter and come with caliper spacers. If longer bolts are required, they are also supplied.

Q: How does reducing weight of the braking system benefit the vehicle?
A: The Girodisc will generally weigh between 4 8 lbs less than the oe disc it will replace. This is due to the heavy cast iron hat section being replaced with lightweight, high strength aluminum. The mass of any vehicle requires energy to accelerate or decelerate. Reducing the vehicle mass improves acceleration, and requires less energy to be dissipated during deceleration. Rotating mass requires additional energy in order to increase or decrease its speed of rotation. Decreasing the mass of the disc has a great benefit due to reduction in rotational inertia. This will allow more of the braking force to be available to decelerate the vehicle, not the disc.
Additionally, the mass of the brake system is also unsprung mass. Reducing the unsprung mass has the additional benefit of improved suspension performance, resulting in enhanced ride and handling. Rotating masses require additional energy to vary the plane on which they turn. The lighter the disc, the quicker the response of the vehicle steering due to the reduction in gyroscopic effect/rotational inertia of the disc. As an example, compare the weight of the Ferrari 360 OE disc at 18.2 lbs, and the Girodisc at 14 lbs. The Girodisc is 4.2 lbs lighter per disc. Replacing all four discs will save 16.8 lbs of rotating, unsprung mass.

Q: Why slotted discs?
A: The edges of the slots continuously clean and refresh the pad surface. This will allow the pads to have a maximized friction surface always available. Additionally, they prevent containments from collecting between the pad and disc interface.
The disc is lightened, decreasing its rotational inertia.
Slots prevent the formation of a water film on the disc in wet weather, maintaining the best brake response.

 

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SKU: 94035167148

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HH
Lake Worth, US
★★★★★ 5
I am begging you to read this book
Format: Kindle, Format: Kindle
A group of women trapped in a temple during an invasion who pretend to be sacred priestesses to avoid being killed and it actually works. That is the setup. That is the whole brilliant premise behind the title and honestly it had me from the first chapter. But what keeps you reading is Edie. She is not a chosen one, not a warrior, not a princess. She is older, she has already lived a full complicated life before this story starts, and that history shapes every decision she makes. When everything falls apart and she ends up somewhere she never expected to be, she does not transform overnight. She reads the room, adjusts, and keeps going. It sounds simple but it is so refreshing compared to what fantasy usually gives us. The women around her are just as important. They do not instantly become a perfect found family. They figure each other out slowly, earn each other's trust over time, and what builds between them ended up being one of my favorite things about this entire book. The romance is slow burn done right. Not manufactured tension, not two people being stubborn for no reason. Real yearning, real patience, real payoff. The magic and world building are present without being overwhelming. There is a nature and ritual element running through everything that gives the story a distinct feel without stopping to explain itself every five minutes. The final stretch of this book is something I was not prepared for. By that point you are so invested in these characters that everything carries weight it would not have had on page one. If you want wall to wall action this is not your book. If you want fantasy that actually makes you feel something, this is exactly your book. One of my favorite reads in a long time. When I was finished reading it, I just kinda sat there... trying to savor every moment of it. Five stars. I recommend this to everyone I know.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
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Roya Tavako-lion
Los Angeles, US
★★★★★ 5
BLEW ME AWAY! Loved every moment
Format: Kindle, Format: Kindle
My new FAVORITE BOOK! Priestess by Kara Reynolds blew me away from start to finish. This is a beautiful story about feminine power, sacrifice, self-worth, friendship, found family, healing and love. And the SLOW burn romance is excruciating and exquisite in the best way (“I am beyond temptation, I have been tempted and I have surrendered”). It was especially wonderful to find a fantasy novel with an FMC in her late 30s that is very relatable. It explores the topics of finding love later in life, fertility and the struggles women have with attaching self-worth with motherhood (My mother says all women are mothers in different ways, that we all give birth, just not all to children. Some women give birth to revolutions, to movements, to sanctuary, to art, to brilliance.”) GAHHH love this. I felt so seen. The twists and turns had me on the edge of my seat, dying to turn the pages faster to know what happens and at the same time wanting to slow down and enjoy Reynolds beautiful prose and savor each chapter. The ending was perfect and the authors note made me cry. I CANNOT wait to read Illuminator and Pilgrimess which will be out April 28th!!!! Kara Reynolds is def on my auto-buy list 💚
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Reviewed in the United States on February 3, 2026
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M Chi
Fort Morgan, US
★★★★★ 5
Take a jaunt to Tintar, a city of blue abalones and black stone set above the angry sea...
Format: Paperback
Edie is a clever, gutsy heroine, who is lucky to be surrounded by a crew of likewise interesting ladies. Their tender moments in the bath and at the bar alike were very lovely, and the themes of female friendship were refreshing. My favorite parts had to do with the magic of this world, which is very novel. Often there's elemental magic, earth gets the short end of the stick. Not so here. The power of earth in this seaside landscape cannot be underestimated, and I really enjoyed that twist. Earth signs, at least, will rejoice in seeing their element treated with real consideration. All of the scenes of magic and old gods were A+, and I loved the weirdness of the rocks first coming to her in the forest, then erupting from the ground to let her know without a doubt what her strength was, and finally forming majestic creatures to rescue her new home—all based on the women who had supported and loved her. The final conflict was excellent. There was a real sense that Edie was going to sacrifice something that she did not want to let go of, which you don't get that often. (Plus, it was pretty funny when a certain someone got tossed over a wall.) Finally, given the themes of womanhood in this book, I am going to pull a word from the big reviewers' lexicon and say that this book is /timely/. What it says about what women are and are not, how it explores Edie's feelings about her body, were thoughtful and illuminating and, yes, timely and given the political climate we are now in—I will even add /necessary/ to that list. It's a rich, femme-centric fantasy epic that made me think about womanhood (and motherhood) in a new light.
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Reviewed in the United States on July 26, 2024
K
Verified Purchase
katienich27
Battle Creek, US
★★★★★ 5
Woman's experience and the power of female friendships
Format: Kindle
This story was amazing, and had several elements currently lacking from the genre. It was mature, wise, experienced, and empathetic. It was wonderfully representative of women's experience, with the bonds and friendships between them serving as the balm for life's hurts. **Spoiler alert/warning: Reynolds tackled SA, infertility, teenage pregnancy, and more. Her representation of infertility is the most true-to-form capture of that awful journey that I've ever seen in literature (AND it wasn't "cured" by the love of the "right" man - something that drives me crazy in 99.99999% of stories that try to touch on infertility). She even included the realness of the older infertile woman's response to the teenage pregnancy in a raw and unfiltered way. Another review said it but I'll back it up: Kara knows. And she shows you that she knows. Thank you for your empathetic writing, Kara Reynolds. Thank you for seeing women and our experiences and representing us on the page. I was touched, moved, inspired, and comforted by the power of female friendships and found family. The romance was gorgeous, even in its predictability. Because it was clear that the true loves of her life were those enduring women who walked life alongside her. Amazing story.
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Reviewed in the United States on June 24, 2025
K
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Kiara Jacob
Natrona Heights, US
★★★★★ 4
Girl a struggle that I couldn't not finish.
Format: Kindle
Keep writing Kara girl. Maybe shorten something. But I enjoyed the story. I did not enjoy the uncertainty because it was never uncertain. I enjoy the story though.
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Reviewed in the United States on April 13, 2025

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