VFORCE/MOTO TASSINARI V-Force 4 Reed - Yamaha V4R04

The V-Force 4 Reed is engineered to maximize intake charge density and extend component longevity in high-RPM applications. Its optimized petal geometry and enhanced airflow design deliver measurable gains in low-end responsiveness and mid-range power while maintaining the durability required for sustained racing operations. Whether you're chasing lap times or building a reliable street machine, this reed system provides the precision engineering that separates competitive platforms from the rest.

• Extended reed stops, progressive deceleration
• Central wing area reduced 15.6%
• Combined reed tip area increased 10.5%
• Aerodynamic cage shape optimized
• Rubber overmolded reed tip surface
• Airfoil-shaped cage tip design
• Enhanced outer port air velocity
• New carbon fiber reed petal construction
• Advanced resin lay-up technology
• Pre-curved petal tip seal
• Wider reed cage, maximum flow
• All-new manifold and air guide
• Yamaha V4R04 fitment specific
• One set per reed cage required
• Bolt-on installation, no fabrication needed