Item Summary

• Kawasaki Ninja 300R, Use w/120B76520 or 120B76620

About the Product

SuperSport

SuperSport discs were developed to deliver the highest performance levels, both on road and on track, to all owners of the most popular European and Japanese Maxi-Sport models. In conjunction with Brembo Z04 brake pads, these discs have won numerious SuperSport World Championships. 

Supersport discs are available with a braking band 34mm high and thickness increased to 5.5mm, the are interchangeable with the original discs without requiring any modifications. These fully floating discs are made from heat-treated steel capable of withstanding extreme thermo-mechanical stress, with an aluminum alloy housings machined from the billet. 

Brembo Supersport Floating Front Brake Disc Kit – 320mm | Part No. 108973757

Race-Proven Braking Performance for High-Performance Motorcycles

Experience championship-winning braking technology with the Brembo Supersport Floating Brake Disc Kit (108973757). Developed using Brembo's extensive MotoGP and World Superbike racing expertise, this premium brake rotor kit is engineered for riders who demand uncompromising stopping power, precise brake feel, and consistent performance under the most demanding riding conditions.

The Supersport series features a fully floating two-piece construction with a heat-treated stainless steel braking ring and a CNC-machined billet aluminum carrier. This design maximizes heat dissipation, minimizes rotor distortion, and delivers exceptional braking consistency during aggressive street riding and track use. Brembo Supersport discs feature a wider 34 mm braking surface and an increased 5.5 mm rotor thickness for enhanced rigidity and improved thermal capacity.

Features

• Genuine Brembo Supersport floating brake disc kit
• Race-inspired design derived from MotoGP and World Superbike technology
• Fully floating construction for optimal thermal expansion
• Heat-treated stainless steel braking ring
• CNC-machined billet aluminum carrier
• Increased 5.5 mm rotor thickness for maximum rigidity
• 34 mm braking surface for superior braking stability
• Outstanding resistance to brake fade
• Excellent brake lever feel and modulation
• Lightweight construction reduces unsprung weight
• Direct replacement for compatible OEM brake rotors
• Designed for aggressive street riding and track-day performance

Technical Specifications

Performance Benefits

MotoGP-Inspired Engineering

Every Brembo Supersport rotor incorporates technology refined through decades of success in professional motorcycle racing, delivering exceptional braking performance for serious riders.

Fully Floating Rotor Design

The floating interface allows the braking ring to expand independently from the carrier during extreme braking, reducing thermal stress while maintaining optimal rotor alignment and braking consistency.

Superior Heat Management

The thicker 5.5 mm braking surface increases thermal capacity, helping to minimize brake fade during repeated hard braking and long track sessions.

Lightweight Billet Carrier

The precision-machined aluminum carrier reduces rotating mass while maintaining exceptional strength and rigidity for improved suspension response and steering precision.

Consistent Braking Feel

Engineered to deliver smooth brake modulation, predictable lever feel, and reliable stopping performance under all riding conditions.

Ideal For

• Track day motorcycles
• High-performance sport bikes
• Canyon and mountain riding
• Racing applications
• Riders upgrading OEM braking systems

Compatible Motorcycles

The Brembo 108973757 Supersport Brake Disc Kit is designed for select high-performance motorcycles equipped with compatible 320 mm front brake rotors.

Please verify fitment for your specific motorcycle make, model, and year before ordering.

Package Includes

• 2 × Brembo Supersport Floating Front Brake Discs
• Brembo factory packaging
• Installation documentation

Why Choose Brembo Supersport Rotors?

For decades, Brembo has been the braking system of choice for the world's leading motorcycle manufacturers and championship-winning race teams. The Supersport range brings race-developed technology to performance street and track motorcycles, offering:

• Outstanding stopping power
• Improved brake feel and modulation
• Reduced brake fade
• Exceptional thermal stability
• Premium Italian engineering
• Direct-fit OEM replacement design

Why Buy From OPP Racing?

At OPP Racing, we supply genuine Brembo performance braking components trusted by professional racers and motorcycle enthusiasts worldwide. Our knowledgeable staff can help you build the ultimate braking package with Brembo calipers, master cylinders, brake pads, stainless steel brake lines, and accessories to maximize your motorcycle's braking performance.

Upgrade your motorcycle with the Brembo Supersport Floating Brake Disc Kit 108973757 and experience race-inspired braking performance, exceptional control, and the unmatched quality that has made Brembo the global leader in high-performance motorcycle braking systems.