This Moose Racing Hard-parts RFX Rotor is a high-quality rear brake disc rotor designed specifically for KTM motorcycles. It is made by Moose Racing, a well-known brand in the motorcycle parts industry. The part number for this item is 1711-1387. This brake disc rotor is perfect for those looking to upgrade their KTM motorcycle's braking system. It is compatible with a variety of KTM models and is made from durable materials that ensure long-lasting use. Additionally, this item is easy to install and provides exceptional stopping power. If you're in need of a reliable replacement for your KTM motorcycle's rear brake disc rotor, this Moose Racing Hard-parts RFX Rotor is an excellent choice.