Trade your rhydon while it is holding a "protecter".
In Pokémon Pearl, Rhydon evolves once you give it the Protector and trade it to another player.
You cannot get the protector to evolve Rhydon in Pokemon Red version, because Rhydon's ability to evolve with a protector into Rypherior is only available in the latest versions: Pokemon Diamond, Pearl, and Platinum. It is impossible to even get a protector in Pokemon Red version, let alone evolve Rhydon.
A Protector, when traded with Rhydon, will evolve it into Rhyperior.
you cant evolve rhydon in fire red because the "protector" wasn't incorperated into the games until diamond/pearl
Rhydon, in Pokemon FR/LG, does not evolve.
Rhydon cannot evolve in Pokemon Silver/Gold/Crystal.
Rhydon will only evolve if you trade it with a friend in the 4th generation Pokemon games like diamond or pearl.
Rhydon, by having him holding the Protector and trade him he will evolve to Rhyperior
Trade it when it is holding a Protector. In Diamond and Pearl, this is found on Route 228.
you give it to a rhydon to hold and then trade it to a different game. it will evolve into a rhyperior.
Rhydon is not able to evolve in FireRed.
No, Rhydon doesn't evolve in Pokémon Sapphire.