GiroDisc 355x35mm 10 Pin Holes 52mm Annulus Slotted Rings

If you're looking to upgrade your braking system for more demanding use, these GiroDisc slotted rotor rings are a solid option. They are designed to replace the iron rotor rings on your existing two-piece GiroDisc rotor assemblies, allowing you to keep the aluminum hats you already have. This means you get the benefits of new rotor surfaces without the cost of a complete new two-piece rotor setup.

These rings are made from a high-carbon, high-strength iron alloy that's known for its durability and resistance to thermal stress. The slots are precision-machined into the rotor surface. These slots help to vent gases and heat away from the pad surface, which can improve braking consistency, especially during repeated hard stops. The 355mm diameter and 35mm thickness are common sizes for performance applications, and the 52mm annulus ensures proper fitment with many popular brake caliper setups. The 10 pin holes are specific to certain two-piece rotor hat designs, so make sure these match your existing GiroDisc hats.

When installing these rings, you'll typically reuse your existing aluminum rotor hats and hardware. It's important to ensure your hats are in good condition and that you use new rotor ring hardware, often supplied by GiroDisc or available separately, to properly secure the new rings. This approach offers a cost-effective way to refresh your braking performance and maintain the advantages of a two-piece rotor system.