It’s not easy being an amateur doper. Over the last two years, more than 10 non-pro cyclists have been caught taking performance-enhancing drugs. In response, events like the Gran Fondo New York are increasingly testing riders—of all levels—to ensure a level playing field.
Luckily, you don’t need to cheat your way to success. If training hard just isn't doing it for you, try these five surprisingly effective supplements for a powerful but legal performance boost.