Focus RS Front Rotors (Girodisc A1-169)
The Girodisc Front Rotor set for the Ford Focus RS offers a precision-engineered upgrade over the factory rotors, delivering improved heat management, reduced unsprung weight, and exceptional durability. Designed as a direct replacement for the OEM discs, these rotors bolt on with no modifications required, maintaining the factory brake bias and ABS performance while enhancing responsiveness and acceleration.
Vehicle Fitment
This Girodisc front rotor set is designed specifically for:
- Ford Focus RS (2016–2018)
Fits directly to the factory calipers and hubs with no adapters or modifications required.
Performance and Design
Each Girodisc rotor weighs approximately 18.0 lbs compared to the OEM 23.1 lbs, reducing rotating and unsprung mass for improved handling, acceleration, and suspension control. The two-piece floating rotor design features a central hat machined from U.S.-sourced 6061-T6 aircraft-grade aluminum paired with a proprietary cast iron friction ring, both developed and machined in the USA. The 48 curved directional vanes act as a centrifugal pump, drawing cooling air through the rotor to manage heat during heavy braking.
Girodisc A1-169 Features
- Direct bolt-on replacement for OEM rotors; no modifications required.
- Two-piece floating rotor design reduces unsprung and rotational mass for sharper handling.
- 6061-T6 aluminum hat and proprietary cast iron rotor ring deliver strength and heat dissipation.
- 48 curved directional vanes promote superior cooling under track and spirited driving conditions.
- Floating mount system with 8–10 high-strength alloy steel drive pins allows for axial and radial float.
- Anti-noise spring washers minimize rattle while maintaining free thermal expansion of the disc.
- Grade 12 hardware and cadmium-plated pins ensure long-term corrosion resistance.
- Maintains factory ABS and brake bias for consistent braking performance.
- Designed, cast, and machined entirely in the USA to motorsport-level tolerances.
Specifications
Rotor Type: Two-piece floating
Vane Count: 48 curved directional
Weight: 18.0 lbs each (stock 23.1 lbs)
Material: Proprietary cast iron with 6061-T6 aluminum hat
Hardware: 8–10 alloy steel drive pins with anti-noise spring washers
Fitment: Ford Focus RS (2016–2018)
Sold as: Pair (left and right front rotors)
FAQs: Ford Focus RS Front Rotors (Girodisc)
Do these rotors work with the OEM calipers? Yes, they are a direct replacement and bolt on using the stock calipers without any modifications.
What are the main performance benefits? Reduced unsprung weight and improved thermal management result in quicker acceleration, sharper handling, and more consistent braking during aggressive driving or track use.
Are these rotors noisy during daily driving? No. The spring washers eliminate the rattle commonly found in floating rotors while still allowing full thermal float.
Can the rotors be rebuilt? Yes. Once installed, only the iron rings need to be replaced when worn, while the aluminum hats and hardware can be reused according to Girodisc’s service guidelines.
Ordering Information
Sold and priced per pair. Includes left and right Girodisc 2-piece floating front rotors for the 2016–2018 Ford Focus RS.
