A variator flange is a component in a motorcycle's continuously variable transmission (CVT) system. It is part of the variator assembly, which controls the transmission's gear ratios by adjusting the width of the variator pulleys. The flange connects the variator to the crankshaft or drive belt, ensuring proper alignment and power transmission. Typically made from durable metal, the variator flange plays a crucial role in maintaining the efficiency and functionality of the CVT system by providing a secure interface for the variator's adjustments.