EBC MD2127X X-Series Floating Motorcycle Brake Rotor with SD-Drive System

The EBC MD2127X X-Series Floating Brake Rotor is a high-performance, ultra-lightweight motorcycle disc brake rotor engineered for both street sport and road race applications. Featuring a full-circle rotor blade profile and a lightweight alloy center hub, this rotor delivers exceptional stopping power with reduced unsprung weight compared to conventional solid rotors.

At the heart of the X-Series design is EBC's patented SD-System™ (Square Drive) button technology, which uses square-sided rivets housed in precision square drive pockets. This innovative system allows the outer stainless steel rotor blade to expand and contract freely during braking cycles, eliminating the rivet lock that causes warping and vibration in lesser designs. The result is a rotor that remains distortion-free under repeated heavy braking loads.

Key Features:

• Full-circle, circular rotor blade profile for consistent, even braking performance
• Mill-hard DB420 stainless steel rotor blade — heat-treated and tempered for maximum hardness and durability
• Lightweight billet alloy center hub reduces overall disc weight by up to 300 grams versus conventional rotors
• Patented EBC SD-System™ square drive button rivets prevent warping and vibration under heavy braking
• True fully floating construction allows greater inside-to-outside float tolerance for optimal rotor function at any speed or load
• Six-button construction for ultra-lightweight design without sacrificing strength
• Hand-built and individually inspected to precise tolerances
• Direct OEM size-for-size replacement — no modifications required
• Compatible with ABS-equipped models — ABS ring transfers from original rotor using supplied threaded holes and hardware
• Sold individually
• British made

The EBC MD2127X is a direct-fit OEM replacement and performance upgrade, offering improved braking efficiency and longevity over stock rotors. As with any rotor replacement, brake pads should be replaced at the same time to ensure proper break-in and maximum performance.