Girodisc Mercedes SL55 / SL63 Rear Rotors (Dimpled & Slotted)
The Girodisc A2-030DS Rear Rotor Kit is a premium lightweight brake upgrade for Mercedes-Benz SL55 and SL63 models. Featuring a dimpled and slotted rotor face, these 2-piece rotors deliver improved cooling, reduced weight, and superior pedal response under hard braking. Designed as a direct-fit replacement, the Girodisc system bolts directly to your OEM calipers with no modifications required.
High-Performance 2-Piece Design
Each Girodisc rotor uses a CNC-machined 6061-T6 aluminum hat mated to a proprietary cast iron rotor ring for an optimal balance of strength and weight savings. The two-piece floating construction reduces unsprung and rotational mass, allowing for sharper handling and quicker suspension reaction. The dimpled and slotted surface enhances pad bite, removes gas buildup, and keeps friction consistent during aggressive driving or track sessions.
Advanced Cooling and Engineering
The rotor’s 48 curved directional vanes act as a centrifugal pump, channeling cooling air through the disc to significantly reduce operating temperatures and fade. Girodisc’s floating mount system connects the rotor ring and hat with 8 to 10 high-strength steel drive pins, cadmium-plated for corrosion resistance and secured with grade 12 fasteners and hardened washers. Anti-noise spring washers eliminate rattling while allowing for proper expansion under heat.
Vehicle Fitment
- Mercedes-Benz SL55 AMG (R230)
- Mercedes-Benz SL63 AMG (R230 / R231)
- Direct bolt-on fitment with factory calipers and hardware
- Dimpled & slotted surface for enhanced braking performance
Technical Specifications
-
CMS Number: A2-030DS
-
Position: Rear
-
Design: 2-piece floating assembly, dimpled & slotted
-
Material: Proprietary cast iron rotor with 6061-T6 aluminum hat
-
Vane Design: 48 curved directional vanes for maximum cooling
-
Hardware: Cadmium-plated drive pins, grade 12 cap screws, anti-noise washers
-
Rebuildable: Yes — replace rotor rings and reuse hats
-
Sold/Price: Per pair
FAQs
Are these rotors a direct replacement for my OEM setup? Yes. They fit factory calipers and require no additional modifications.
Why choose dimpled and slotted rotors? The surface design increases initial bite, releases gases, and prevents glazing, providing consistent braking power during spirited or track driving.
Do these rotors reduce weight? Yes. Girodisc 2-piece rotors are lighter than OEM rotors, improving suspension response and reducing rotational mass.
Can I reuse the aluminum hats? Absolutely. The Girodisc system is fully rebuildable, allowing you to replace the iron rotor rings when worn while retaining the aluminum hats.
Upgrade your Mercedes SL55 or SL63 with Girodisc A2-030DS Rear Rotors for improved braking performance, reduced unsprung weight, and track-ready durability—all proudly engineered and manufactured in the USA.
