Lightweight Professional Bike Road Shoes and clipless pedals are inseparable, you can't buy cycling shoes and keep your regular pedals. The tough outsole of this Professional Bike Road Shoes is designed solely to transfer energy efficiently when pedaling through contact. There are special holes in the sole of cycling shoes, where the spikes are attached, and they, in turn, snap into the pedals, and thus the cyclist's leg remains securely attached to the pedal. BOA clasp with a line or steel cable. It is a reliable system that firmly fixes the foot and can be easily adjusted with one hand. Fits on High-end Professional Bike Road Shoes.