BOYESEN RAD Valve S3-Cat-Accessories-Offroad-ForkBoots The knurled section on clutch

The knurled section on clutch end gives adhesion for handlebar grip

leading to premature failure and battery drain

while a mesh comfort liner enhances breathability when the removable liners are not in use

6KM (in ideal conditions)

BOYESEN RAD Valve S3-Cat-Accessories-Offroad-ForkBoots The knurled section on clutchThe Gulp Factor Your engine is a glutton for air. It will take over 200 'gulps per second, at velocities over 500 MPG if your intake valve will let it. Boyesen's RAD Valve's seamless, one piece, precision casting and continuous aeroform surfaces ensure maximum flow velocities and instant, explosive movement of air particles the moment you turn the throttle. Result: An intake valve the size of your fist delivers air with the power of a tornado. We