GiroDisc 380x35mm 10 Pin Holes 52mm Annulus Slotted Rings

If you're looking to upgrade your braking system for more demanding use, like track days or spirited driving, these GiroDisc slotted rotor rings are a solid option. They're designed to replace the iron friction rings on your existing two-piece rotor assemblies, allowing you to keep your original hats and save on cost while still getting improved performance. These rings are 380mm in diameter and 35mm thick, featuring 10 pin holes and a 52mm annulus, which is the diameter where the brake pads make contact. This specific sizing is crucial for ensuring proper fitment with your caliper and hat assembly.

What sets these apart is the material and the slot design. GiroDisc uses a high-quality iron alloy that's known for its durability and consistent performance under heat. The slots are carefully machined into the rotor surface. Unlike some aggressive slot patterns, these are designed to help sweep away brake dust and gasses that can build up between the pad and rotor, which can reduce stopping power. This helps maintain a cleaner friction surface and allows the pads to bite more effectively, especially during repeated hard stops. The goal here is to give you more confidence in your brakes when they're working the hardest.

When installing these, you'll be reusing your existing rotor hats. This means you'll need to carefully remove the old friction rings and then bolt these new ones on using the appropriate hardware. It's a good idea to have a torque wrench handy to ensure the rings are secured to the correct specifications as recommended by GiroDisc. This process allows for a significant upgrade without the expense of a full two-piece rotor assembly.