The MOTO-MASTER Adapter SM-Street consists of billet aluminum and is fully CNC-milled and black anodized. This adapter bracket is designed for use with brake discs that have a diameter of 320mm. It provides superior durability and performance for your motorcycle's braking system. The precision CNC machining ensures a perfect fit and optimal function while the black anodized finish offers excellent resistance against corrosion and wear. Perfect for riders looking to upgrade their braking performance with reliability and precision engineering.