Power is the direct measure of a cyclist's effort. This is crucial information for cyclists wishing to improve. Nowadays, most road cycling trainers ask their clients to equip themselves with a power meter. The "wattage" is your "Check Engine". Watts ultimately measure your human drive. To give you a clear idea of the concept of potency, download the potency guide below in PDF format. It summarizes in a few pages what there is to know about Watts. It was written in collaboration with cycling coach Yannick Bédard (PNCE4) from Cible Performance.