EPICA KYB 48mm Closed Cartridge Kit – Yamaha YZ/YZF, Kawasaki KX/KXF, Suzuki RMZ, TM Racing

The EPICA KYB 48mm Closed Cartridge Kit gives riders better front-end control, improved damping consistency, and a more connected feel on the track. The system upgrades the stock KYB fork into a premium closed cartridge design focused on stability, comfort, and hydraulic control.

Designed and manufactured in Italy, the EPICA system performs in motocross, supercross, off-road racing, GP terrain, and aggressive recreational riding. It improves braking stability, cornering confidence, bump absorption, and consistency during long motos or rough conditions.

Unlike a traditional open cartridge fork, the EPICA closed cartridge system isolates the damping oil for better thermal stability and reduced cavitation. As a result, the fork maintains a more predictable and controlled feel throughout the ride.

Technology Overview

The EPICA KYB 48mm Cartridge Kit uses a high-performance closed cartridge design to improve damping precision and hydraulic consistency. The system increases support during aggressive riding while maintaining comfort and traction on rough terrain.

In addition, the cartridge design improves oil flow control through precision-machined internal components and refined hydraulic management. This creates a more planted front-end feel and improves rider confidence during braking and corner entry.

The closed cartridge structure also reduces oil aeration and cavitation. Consequently, the fork maintains more consistent damping during long motos and demanding riding conditions.

Performance Benefits

• Improved front-end hold-up under braking
• Increased cornering confidence
• Enhanced damping consistency
• Reduced cavitation inside the fork
• Improved bump absorption
• Better bottoming resistance
• More planted front-end feel
• Increased rider feedback and control
• Precision-machined Italian components
• Designed for motocross and off-road racing

Riding Applications

• Professional Motocross
• Professional Supercross
• GP and technical terrain
• Off-road racing
• Vet and amateur racing
• Enduro and cross-country riding