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ProX pistons for Nicasil/plated cylinders
not only did it return the kicker smoother and more constantly but it will not break like the stock springs have been known to do
The kit comes with two textured shrink tubes
On a four stroke sand and dirt that gets by the filter will quickly wear out your expensive valve train and cause hard starting and poor performance
The stock component has a notorious tendency to fail at the connection between the stem and the paddle
Yamaha YZ250 YZ250X 1997 2025 Moto Tassinari VForce4X Reed Valve Kit V4X07EM 2026 ProX pistons for Nicasil/plated cylinders100% 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
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