Take your Yamaha Banshee or Blaster to the next level with the Moto Tassinari V-Force 4 Reed Valve Kit, designed to deliver maximum airflow, faster throttle response, and improved engine efficiency. This complete kit includes two reed cages with gaskets, engineered to fit all years of the Yamaha Banshee and Blaster. Built using Moto Tassinari’s most advanced reed technology, the V-Force 4 system is a proven upgrade for serious 2-stroke performance.
The V-Force 4 features a new reed petal resin system with a carbon fiber layup, combined with a pre-curved reed petal for a tighter tip seal. The wider reed cage design increases the combined reed tip area by 10.5%, resulting in greater airflow across all throttle positions. Enhancements like the airfoil-shaped cage tips boost air velocity, while long reed stops slow petal velocity for improved durability. A 15.6% reduction in the frontal area of the central wing, paired with a more aerodynamic shape, minimizes air resistance for smoother intake flow.
Key Features:
- Sold as a Set: Includes (2) black reed cages and gaskets
- Reed Petal Resin System: Carbon fiber layup for strength and responsiveness
- Pre-Curved Reed Petals: Ensures optimal seal at the tip for better throttle control
- Wider Reed Cage: Increases airflow by 10.5% for improved power delivery
- Airfoil-Shaped Cage Tips: Enhance air velocity from outer ports
- Long Reed Stops: Gradually slow petal tip speed, increasing petal life
- Reduced Central Wing Size: 15.6% smaller frontal area improves intake flow dynamics
- Screw-Free Design: Faster reed petal changes and reduced engine risk
- Color: Black
What’s Included:
- (2) VForce4 Reed Valve Cages with Carbon Fiber Petals
- (2) Gaskets
- Installation Instructions
Why Choose the V-Force 4 System?
Whether you're looking for increased bottom-end power, stronger mid-range pull, or extended top-end performance, the Moto Tassinari V-Force 4 Reed Valve Kit offers a comprehensive airflow upgrade that’s dyno-tested and race-proven. Designed for longevity, responsiveness, and maximum output, it’s the ultimate bolt-on performance part for your Yamaha Banshee or Blaster.
| Specifications | |
|---|---|
| SKU | 379-0864 |
| Brand | V-Force |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
You May Also Like
Part Numbers
| SKU | MPN | Availability | In-Store Pickup | |
|---|---|---|---|---|
| 379-0864 | V4145 | 10+ In Stock. Ready to ship. | - | |
| 379-0865 | V4144-2 | 8 In Stock. Ready to ship. | - |








