Adds about one-2hp and increased torque about stock carb and is also fuel combination adjustable. The 22mm is the best option if you are jogging stock valves A Schrader valve will work determined by a poppet system, although Presta valves function with a smaller sized diameter on bikes with thinner https://donovanaehko.blog5star.com/35510408/rumored-buzz-on-kawasaki-quad-bike-parts