Yamaha YZ250 YZ250X 1997 2025 Moto Tassinari VForce4X Reed Valve Kit V4X07EM EX300 • Manufactured by leading Japanese

• Manufactured by leading Japanese OEM factories

Kit includes: Piston

These new springs are a must have for the serious racer

carbon end cap

Pro-Series - 3-Ring

Yamaha YZ250 YZ250X 1997 2025 Moto Tassinari VForce4X Reed Valve Kit V4X07EM EX300 • Manufactured by leading Japanese100% Genuine Moto Tassinari Product! BEWARE: Counterfeit V Force (click & check) Made in the USA Part no: V4X07EM Moto Tassinari is the manufacturer of the AIR4ORCE tunable intake system for four stroke motorcycles, and the VForce reed valve system for two stroke motors. The VForce reed valve system by Moto Tassinari has been the reed valve system of choice by anyone serious about two stroke engine performance for the last 25+ yrs. The simple premise