Outsole Traction: Rubber pads are strategically placed on the heel and toe areas to provide grip while walking on studio floors. Breathable. The outsole also features air ventilation pockets that work in conjunction with the mesh upper to allow excellent airflow. Power transfer: An external plate is placed in the cleat area to govern pedaling efficiency. The level of power transfer is enough for indoor cycling and casual rides. Cleat System: The Nike SuperRep Cycle employs both two- and three-bolt cleat systems. It is compatible with both Look Delta and SPD pedals. If you choose to use the three-bolt design, these are the pedals you can try: Shimano Ultegra PD-R8000, Time Xpro 12 and Garmin Vector 3 Power Meter. If you choose to use the two-bolt design, the pedals you can try are Shimano XTR M9020, Crank Brothers Mallet E and Nukeproof Horizon CS CrMo.