Pedals, cleats and shoes
When starting out, most riders use flat pedals and trainers.
But it is possible to ‘upgrade’ to using cycling shoes, attach cleats and use pedals that the cleats fit in to. This gives a more efficient pedal stroke and confidence that your feet don’t slip off the pedals. The most popular styles of cleat/pedal are SPD, SPD-SL, Look/Keo.