So, how does the RS4X work?
Simply put, the RS4X increase your bicycle’s gearing, slowing the power/downstroke while reducing the gearing and speeding the recovery/upstroke. The action is very brief, and hardly noticeable in your first 20 minutes of pedaling, fading into a normal feel within the first 30 minutes of riding. This gearing change allows for the removal of the dead point, increasing the time that you are “pushing” down on the pedals, and reduces the physical demand on your body, lowering your lactate production. It also allows you to ride longer with less fatigue, climb easier, and reduce the stress on your knees.
