Kanto Route 17/Manga/Pokémon Adventures

The Cycling Road debuted in Blame It on Eevee, where Erika's caused  to crash his bike. About to complain to the owner, Red was stopped by some of her minions, telling him that Erika is from the richest family in Celadon City and the local Gym Leader as well. After hearing that she was the Gym Leader of Celadon City, Red wanted to challenge her, but she said that she would only challenge him if he found an Eevee. Red tried to contact at the Route 17 Pokémon Center to find out what an  is, but he was out. Suddenly, Red got a call from his old friend, who helped him find an Eevee, which turned out to be capable of changing between its three evolutions at will due to an experiment of Team Rocket.