Zero Gravity Double Bubble Windscreen for 2018 20 Kawasaki EX400 Ninja 400 Dark Smoke 16 283 19 2012 Triumph Scrambler Tony Hawk Special 865 The VForce reed valve system 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 10+ years Product Details Product Line Big Gun Exhaust EVO Race Series Part Number 09 24601 Fitment Type Model Specifc Fitment Use Type Unit Sale Qty Each Style Size Position Material Stainless Steel Color Finish Exhaust Configuration 1 into 1 Header Pipe Muffler Size Muffler End Tip Style California Emissions FALSE Product Disclaimer Fitment Note Does NOT fit any 2010 2011 models Fitment Note Does NOT fit YFZ450R or YFZ450X models Fitment Note Fitment Note Fitment Note the Double Bubble is now seen on racetracks around the world The Double Bubble was originally designed to provide superior aerodynamics for a rider tucked in behind the windscreen