Wind is collected by the inlet tube to pressurize the reservoir. The oil flows through the outlet, which is located higher than the natural level. The oil is delivered through an optimized flow restriction device to your chain. Oil does not fill the discharge tube,it simply trickles down the walls of the tubing at a very controlled rate while your motorcycle is moving. The oil flows into an applicator, which transfers a thin film of oil directly to the inside radius of your chain. No adjustments are required, because the flow naturally changes with the speed of your motorcycle.