SKU: 94035167148

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

Sale price$1102.50 Regular price$1225.00
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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.

 

Shipping Notes
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Exchange/Return Notes
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SKU: 94035167148

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J. Ward
Carnegie, US
★★★★★ 5
Just like a regular Chuckit launcher but easily folds in half if needed
Our dog loves chasing balls! And, if we're out in the woods, he'll chase the ball and bring it back and say "throw it again"...again and again. Well, he doesn't actually "say:" anything, but he just loves to fetch and retrieve. With this ball launcher, it's easy to pick up the slimy ball and throw it. We have Chuckit launchers that are 27 inches and they are awesome. They are long enough that I don't even have to bend down to pick them up to throw again. With this item, it's 25 inches extended, but that's good enough. Same thing as the Chuckit launcher, but you can easily bend it in half if needed then open it up and lock it in place to have a reasonable facsimile of a regular launcher. It comes with a tennis ball-like ball. Get some Chuckit balls for it. Much better than tennis balls.
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Reviewed in the United States on December 16, 2025
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Brenda L. Ketola
Massapequa, US
★★★★★ 5
Best thing ever!
Size: Mini
I had no idea how my dog would react to this. She would play fetch but she seemed to get bored. This Chuck It is probably my dog's favorite toy. I love it because I can actually get the ball a lot further to get her running more. And I love how easy it makes picking up the ball. All in all, this is so worth the little bit of money it is. My dog gets so excited when I ask her if she wants to play with her Chuck It. I'd buy this again and again. This thing saves my arm and back, and my dog gets some serious exercise. Winner winner. I also love how this one folds. I can fit it anywhere to take it along. Really I simply can't say enough good things about this little ball flinger. It's also my favorite thing to play with my pup.
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Reviewed in the United States on July 22, 2025
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gzlst32
Draper, US
★★★★★ 5
Great for Big and Small Dogs
Size: Mini
This launcher is on the smaller side, but it gets the job done! It’s perfect for small dogs and still throws far enough to tire out my golden retriever at the dog park. I thought it might fold while throwing, but it locks in place and holds straight really well. The foldable design makes it easy to carry in a small bag or leave in the car for spontaneous play. Lightweight, compact, and surprisingly sturdy, definitely a must-have if want to have a extra to leave in you car .
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Reviewed in the United States on June 17, 2025
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Jennifer Esquivel
Draper, US
★★★★★ 5
Love that it all up. Great use like original just smaller.
Size: Mini
Love this! Works great just like the original but it’s easy to fold up and put in bags for travel. Super durable, not flimsy . Balls have the same great bounce. Love the size great for any ball, loving pups, and the owners! Great gift ideas for new puppies. Will buy again for sure.
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Reviewed in the United States on November 23, 2025
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Soso
Los Angeles, US
★★★★★ 5
Great product!!!
Size: Mini
Great product. Great price. I like that it's foldable!!
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Reviewed in the United States on May 9, 2026

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