Moto Tassinari VForce3 / VForce3i Reed Valve System (59-67620) | Yamaha YZ250 / YZ250X (1997-2019)
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Complete high-performance reed valve system engineered to significantly increase airflow, bottom-end throttle response, and peak horsepower. Features an advanced aerodynamic reed cage design with shorter petals for a noticeable increase in overall performance, optimized reed stops for enhanced petal stability, and a custom-integrated intake boot providing a straight shot directly into the engine cases for even fuel/air distribution.
Specs & Details
- Manufacturer Part Number: 59-67620
- Alternative Part Number: Moto Tassinari V307A / VForce3i
- Kit Type: Complete Reed Valve and Integrated Intake Boot Assembly
- Material & Construction: Composite reed cage structure with high-grade carbon fiber reed petals and custom molded airflow boot
Two-Stroke Vehicle Fitment
| Make | Model | Engine Type | Year Range |
| Yamaha | YZ 250 | Two-Stroke Motocross / Off-Road | 1997–2019 |
| Yamaha | YZ 250X | Two-Stroke Cross-Country | 2016–2019 |
| Suzuki | RM 250 | Two-Stroke Motocross | 1996–1997, 2003–2008 |
TSO Garage Note
Good call—updating that range out through 2019 keeps it accurate for the later model YZ builds sharing this block. By doubling the reed tip surface area over stock and streamlining the entry path straight into the cases, the VForce3i system cleans up off-idle bog and sharpens throttle snap instantly. Whether you are battling deep sand dunes, hooking up on slick single-track trails, or charging down long motocross straights, it delivers a broader, more tractable powerband across the entire RPM range.
Compatibility
Fetching compatibility details...
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