{"product_id":"v-force-4-reed-valve-yz250-x","title":"V-Force 4 Reed Valve YZ250\/X","description":"\u003cp\u003eThe all-new VFORCE4X for the Yamaha YZ250 and YZ250X motorcycles has been designed to offer you exceptional durability and overcome the shortcomings of the stock reed valve system.\u003c\/p\u003e\u003cp\u003eThe 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+ years. The simple premise of the VForce reed valve system is to increase engine power and throttle response by increasing the efficiency over a conventional reed valve design by doubling the reed-tip surface.\u003c\/p\u003e\u003cp\u003eSTANDARD VFORCE REED VALVE FEATURES\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDouble the reed tip surface over a conventional reed valve design\u003c\/li\u003e\n\u003cli\u003eIncreased bottom end, stronger mid-range and longer top-end\u003c\/li\u003e\n\u003cli\u003eGreater efficiency due to reduced reed petal travel\u003c\/li\u003e\n\u003cli\u003eMore airflow means more horsepower\u003c\/li\u003e\n\u003cli\u003eReduced reed petal wear\u003c\/li\u003e\n\u003cli\u003eScrew free design eliminates risk of screws going through motor\u003c\/li\u003e\n\u003cli\u003eScrew free design enables rapid reed petal changes\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIMPROVED VFORCE4 FEATURES\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAll-new reed petal resin system, carbon fiber and lay-up\u003c\/li\u003e\n\u003cli\u003ePre-curved reed petal ensures better seal at tip\u003c\/li\u003e\n\u003cli\u003eWider reed cage for maximum airflow\u003c\/li\u003e\n\u003cli\u003eCombined reed tip area increased by 10.5% resulting in increased total air flow\u003c\/li\u003e\n\u003cli\u003eAirfoil shape added to cage tip to increase air velocity from outer ports\u003c\/li\u003e\n\u003cli\u003eLong reed stops added to progressively slow petal tip velocity, for increased petal durability\u003c\/li\u003e\n\u003cli\u003eReduced frontal area of central wing by 15.6% combined with a more aerodynamic shape\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eALL-NEW VFORCE4R FEATURES\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRubber overmodling on reed tip surface of cage to further enhance petal life\u003c\/li\u003e\n\u003cli\u003ePre-curved reed petal ensures better seal at tip\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eALL-NEW VFORCE4RI FEATURES\u003c\/p\u003e\u003cul\u003e\u003cli\u003eCustom intake manifold boot that offers a straighter shot to the intake that greatly enhances both airflow and performance\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eFITS\u003c\/p\u003e\u003cp\u003eYAMAHA YZ250\/X (1997-2024)\u003c\/p\u003e","brand":"V-Force","offers":[{"title":"Default Title","offer_id":45962302947466,"sku":"V4X07EM","price":3700.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0361\/9638\/4906\/files\/dsc0344_v4x07eweb.jpg?v=1739180265","url":"https:\/\/www.bikekings.co.za\/products\/v-force-4-reed-valve-yz250-x","provider":"Bike Kings","version":"1.0","type":"link"}